rustdoc: Do not add external traits to the crate in register_res

src/librustdoc/clean/utils.rs

@@ -7,7 +7,6 @@ use crate::clean::{
     PathSegment, Primitive, PrimitiveType, Type, TypeBinding, Visibility,
 };
 use crate::core::DocContext;
-use crate::formats::item_type::ItemType;
 
 use rustc_ast as ast;
 use rustc_ast::tokenstream::TokenTree;
@@ -503,9 +502,6 @@ pub(crate) fn register_res(cx: &mut DocContext<'_>, res: Res) -> DefId {
         return did;
     }
     inline::record_extern_fqn(cx, did, kind);
-    if let ItemType::Trait = kind {
-        inline::record_extern_trait(cx, did);
-    }
     did
 }
 

src/test/rustdoc/intra-doc/auxiliary/issue-103463-aux.rs

@@ -0,0 +1,4 @@
+pub trait Trait {
+    /// [`u8::clone`]
+    fn method();
+}

src/test/rustdoc/intra-doc/issue-103463.rs

@@ -0,0 +1,8 @@
+// The `Trait` is not pulled into the crate resulting in doc links in its methods being resolved.
+
+// aux-build:issue-103463-aux.rs
+
+extern crate issue_103463_aux;
+use issue_103463_aux::Trait;
+
+fn main() {}