remove the tests

This reverts commits:
- e3e2a077be
- 6404d0e2c4
- ad3e8de25b
- 507f4bda44

.github/workflows/ci.yml

@@ -115,9 +115,6 @@ jobs:
         # as part of #8525.
         run: cargo install --path . --locked --no-default-features
 
-      - name: System dependencies
-        run: sudo apt install -y xclip
-
       - name: Standard library tests
         run: nu crates/nu-utils/standard_library/tests.nu
 

crates/nu-utils/standard_library/test_std.nu

@@ -22,15 +22,3 @@ export def test_path_add [] {
         assert equal $env.PATH ["fooooo", "foo", "bar", "baz"]
     }
 }
-
-export def test_clip_simple_string [] {
-    use std.nu clip
-
-    "foo" | clip --silent --no-notify
-}
-
-export def test_clip_structured_data [] {
-    use std.nu clip
-
-    open Cargo.toml | get package | clip --silent --no-notify
-}