diff --git a/crates/ra_analysis/src/module_map.rs b/crates/ra_analysis/src/module_map.rs
deleted file mode 100644
index 3c800265ad..0000000000
--- a/crates/ra_analysis/src/module_map.rs
+++ /dev/null
@@ -1,41 +0,0 @@
-use std::sync::Arc;
-
-use crate::{
-    db,
-    Cancelable,
-    db::SyntaxDatabase,
-    descriptors::{ModuleDescriptor, ModuleTreeDescriptor},
-    FileId,
-};
-
-salsa::query_group! {
-    pub(crate) trait ModulesDatabase: SyntaxDatabase {
-        fn module_tree() -> Cancelable<Arc<ModuleTreeDescriptor>> {
-            type ModuleTreeQuery;
-        }
-        fn module_descriptor(file_id: FileId) -> Cancelable<Arc<ModuleDescriptor>> {
-            type ModuleDescriptorQuery;
-        }
-    }
-}
-
-fn module_descriptor(db: &impl ModulesDatabase, file_id: FileId) -> Cancelable<Arc<ModuleDescriptor>> {
-    db::check_canceled(db)?;
-    let file = db.file_syntax(file_id);
-    Ok(Arc::new(ModuleDescriptor::new(file.ast())))
-}
-
-fn module_tree(db: &impl ModulesDatabase) -> Cancelable<Arc<ModuleTreeDescriptor>> {
-    db::check_canceled(db)?;
-    let file_set = db.file_set();
-    let mut files = Vec::new();
-    for &file_id in file_set.files.iter() {
-        let module_descr = db.module_descriptor(file_id)?;
-        files.push((file_id, module_descr));
-    }
-    let res = ModuleTreeDescriptor::new(
-        files.iter().map(|(file_id, descr)| (*file_id, &**descr)),
-        &file_set.resolver,
-    );
-    Ok(Arc::new(res))
-}