diff --git a/crates/rust-analyzer/tests/heavy_tests/main.rs b/crates/rust-analyzer/tests/heavy_tests/main.rs
index 9a4655e4d5..7370505f8b 100644
--- a/crates/rust-analyzer/tests/heavy_tests/main.rs
+++ b/crates/rust-analyzer/tests/heavy_tests/main.rs
@@ -5,14 +5,11 @@ use std::{collections::HashMap, path::PathBuf, time::Instant};
 
 use lsp_types::{
     notification::DidOpenTextDocument,
-    request::{
-        CodeActionRequest, Completion, DocumentSymbolRequest, Formatting, GotoTypeDefinition,
-        HoverRequest,
-    },
+    request::{CodeActionRequest, Completion, Formatting, GotoTypeDefinition, HoverRequest},
     CodeActionContext, CodeActionParams, CompletionParams, DidOpenTextDocumentParams,
-    DocumentFormattingParams, DocumentSymbolParams, FormattingOptions, GotoDefinitionParams,
-    HoverParams, PartialResultParams, Position, Range, TextDocumentItem,
-    TextDocumentPositionParams, WorkDoneProgressParams,
+    DocumentFormattingParams, FormattingOptions, GotoDefinitionParams, HoverParams,
+    PartialResultParams, Position, Range, TextDocumentItem, TextDocumentPositionParams,
+    WorkDoneProgressParams,
 };
 use rust_analyzer::lsp_ext::{OnEnter, Runnables, RunnablesParams};
 use serde_json::json;
@@ -685,313 +682,3 @@ pub fn foo(_input: TokenStream) -> TokenStream {
     let value = res.get("contents").unwrap().get("value").unwrap().to_string();
     assert_eq!(value, r#""```rust\nfoo::Bar\n```\n\n```rust\nfn bar()\n```""#)
 }
-
-#[test]
-fn test_document_symbol_with_hierarchy() {
-    if skip_slow_tests() {
-        return;
-    }
-
-    let server = Project::with_fixture(
-        r#"
-//- /Cargo.toml
-[package]
-name = "foo"
-version = "0.0.0"
-
-//- /src/lib.rs
-mod a {
-    mod b {
-        struct B1;
-        fn b2() {}
-    }
-    struct A1;
-}
-"#,
-    )
-    .with_config(|config| {
-        config.client_caps.hierarchical_symbols = true;
-    })
-    .server();
-    server.wait_until_workspace_is_loaded();
-
-    server.request::<DocumentSymbolRequest>(
-        DocumentSymbolParams {
-            text_document: server.doc_id("src/lib.rs"),
-            work_done_progress_params: WorkDoneProgressParams::default(),
-            partial_result_params: PartialResultParams::default(),
-        },
-        json!([
-            {
-                "children": [
-                    {
-                        "children": [
-                            {
-                                "deprecated": false,
-                                "kind": 23,
-                                "name": "B1",
-                                "range": {
-                                    "end": {
-                                        "character": 18,
-                                        "line": 2
-                                    },
-                                    "start": {
-                                        "character": 8,
-                                        "line": 2
-                                    }
-                                },
-                                "selectionRange": {
-                                    "end": {
-                                        "character": 17,
-                                        "line": 2
-                                    },
-                                    "start": {
-                                        "character": 15,
-                                        "line": 2
-                                    }
-                                },
-                                "tags": []
-                            },
-                            {
-                                "deprecated": false,
-                                "detail": "fn()",
-                                "kind": 12,
-                                "name": "b2",
-                                "range": {
-                                    "end": {
-                                        "character": 18,
-                                        "line": 3
-                                    },
-                                    "start": {
-                                        "character": 8,
-                                        "line": 3
-                                    }
-                                },
-                                "selectionRange": {
-                                    "end": {
-                                        "character": 13,
-                                        "line": 3
-                                    },
-                                    "start": {
-                                        "character": 11,
-                                        "line": 3
-                                    }
-                                },
-                                "tags": []
-                            }
-                        ],
-                        "deprecated": false,
-                        "kind": 2,
-                        "name": "b",
-                        "range": {
-                            "end": {
-                                "character": 5,
-                                "line": 4
-                            },
-                            "start": {
-                                "character": 4,
-                                "line": 1
-                            }
-                        },
-                        "selectionRange": {
-                            "end": {
-                                "character": 9,
-                                "line": 1
-                            },
-                            "start": {
-                                "character": 8,
-                                "line": 1
-                            }
-                        },
-                        "tags": []
-                    },
-                    {
-                        "deprecated": false,
-                        "kind": 23,
-                        "name": "A1",
-                        "range": {
-                            "end": {
-                                "character": 14,
-                                "line": 5
-                            },
-                            "start": {
-                                "character": 4,
-                                "line": 5
-                            }
-                        },
-                        "selectionRange": {
-                            "end": {
-                                "character": 13,
-                                "line": 5
-                            },
-                            "start": {
-                                "character": 11,
-                                "line": 5
-                            }
-                        },
-                        "tags": []
-                    }
-                ],
-                "deprecated": false,
-                "kind": 2,
-                "name": "a",
-                "range": {
-                    "end": {
-                        "character": 1,
-                        "line": 6
-                    },
-                    "start": {
-                        "character": 0,
-                        "line": 0
-                    }
-                },
-                "selectionRange": {
-                    "end": {
-                        "character": 5,
-                        "line": 0
-                    },
-                    "start": {
-                        "character": 4,
-                        "line": 0
-                    }
-                },
-                "tags": []
-            }
-        ]),
-    );
-}
-
-#[test]
-fn test_document_symbol_without_hierarchy() {
-    if skip_slow_tests() {
-        return;
-    }
-
-    let server = project(
-        r#"
-//- /Cargo.toml
-[package]
-name = "foo"
-version = "0.0.0"
-
-//- /src/lib.rs
-mod a {
-    mod b {
-        struct B1;
-        fn b2() {}
-    }
-    struct A1;
-}
-"#,
-    );
-    server.wait_until_workspace_is_loaded();
-
-    server.request::<DocumentSymbolRequest>(
-        DocumentSymbolParams {
-            text_document: server.doc_id("src/lib.rs"),
-            work_done_progress_params: WorkDoneProgressParams::default(),
-            partial_result_params: PartialResultParams::default(),
-        },
-        json!([
-            {
-                "deprecated": false,
-                "kind": 2,
-                "location": {
-                    "range": {
-                        "end": {
-                            "character": 1,
-                            "line": 6
-                        },
-                        "start": {
-                            "character": 0,
-                            "line": 0
-                        }
-                    },
-                    "uri": "file:///[..]/src/lib.rs"
-                },
-                "name": "a",
-                "tags": []
-            },
-            {
-                "containerName": "a",
-                "deprecated": false,
-                "kind": 2,
-                "location": {
-                    "range": {
-                        "end": {
-                            "character": 5,
-                            "line": 4
-                        },
-                        "start": {
-                            "character": 4,
-                            "line": 1
-                        }
-                    },
-                    "uri": "file:///[..]/src/lib.rs"
-                },
-                "name": "b",
-                "tags": []
-            },
-            {
-                "containerName": "b",
-                "deprecated": false,
-                "kind": 23,
-                "location": {
-                    "range": {
-                        "end": {
-                            "character": 18,
-                            "line": 2
-                        },
-                        "start": {
-                            "character": 8,
-                            "line": 2
-                        }
-                    },
-                    "uri": "file:///[..]/src/lib.rs"
-                },
-                "name": "B1",
-                "tags": []
-            },
-            {
-                "containerName": "b",
-                "deprecated": false,
-                "kind": 12,
-                "location": {
-                    "range": {
-                        "end": {
-                            "character": 18,
-                            "line": 3
-                        },
-                        "start": {
-                            "character": 8,
-                            "line": 3
-                        }
-                    },
-                    "uri": "file:///[..]/src/lib.rs"
-                },
-                "name": "b2",
-                "tags": []
-            },
-            {
-                "containerName": "a",
-                "deprecated": false,
-                "kind": 23,
-                "location": {
-                    "range": {
-                        "end": {
-                            "character": 14,
-                            "line": 5
-                        },
-                        "start": {
-                            "character": 4,
-                            "line": 5
-                        }
-                    },
-                    "uri": "file:///[..]/src/lib.rs"
-                },
-                "name": "A1",
-                "tags": []
-            }
-        ]),
-    );
-}