Remove hir_def/docs.rs module

crates/hir/src/attrs.rs

@@ -1,6 +1,9 @@
 //! Attributes & documentation for hir types.
 use hir_def::{
-    attr::Attrs, docs::Documentation, path::ModPath, resolver::HasResolver, AttrDefId, ModuleDefId,
+    attr::{Attrs, Documentation},
+    path::ModPath,
+    resolver::HasResolver,
+    AttrDefId, ModuleDefId,
 };
 use hir_expand::hygiene::Hygiene;
 use hir_ty::db::HirDatabase;

crates/hir/src/lib.rs

@@ -44,10 +44,9 @@ pub use crate::{
 
 pub use hir_def::{
     adt::StructKind,
-    attr::Attrs,
+    attr::{Attrs, Documentation},
     body::scope::ExprScopes,
     builtin_type::BuiltinType,
-    docs::Documentation,
     find_path::PrefixKind,
     import_map,
     item_scope::ItemInNs,