removed custom functions and comment

Author: hackeryarn

src/librustc/dep_graph/dep_node.rs

@@ -149,7 +149,6 @@ pub enum DepNode<D: Clone + Debug> {
     // not a hotspot.
     ProjectionCache { def_ids: Vec<D> },
 
-    // Depnodes for MetaData
     DescribeDef(D),
     DefSpan(D),
 }

src/librustc/ty/maps.rs

@@ -576,8 +576,8 @@ define_maps! { <'tcx>
     [] def_symbol_name: SymbolName(DefId) -> ty::SymbolName,
     [] symbol_name: symbol_name_dep_node(ty::Instance<'tcx>) -> ty::SymbolName,
 
-    [] describe_def: describe_def(DefId) -> Option<Def>,
-    [] def_span: def_span(DefId) -> Span
+    [] describe_def: DescribeDef(DefId) -> Option<Def>,
+    [] def_span: DefSpan(DefId) -> Span
 }
 
 fn coherent_trait_dep_node((_, def_id): (CrateNum, DefId)) -> DepNode<DefId> {
@@ -608,12 +608,4 @@ fn typeck_item_bodies_dep_node(_: CrateNum) -> DepNode<DefId> {
 
 fn const_eval_dep_node((def_id, _): (DefId, &Substs)) -> DepNode<DefId> {
     DepNode::ConstEval(def_id)
-}
-
-fn describe_def(def_id: DefId) -> DepNode<DefId> {
-    DepNode::DescribeDef(def_id)
-}
-
-fn def_span(def_id: DefId) -> DepNode<DefId> {
-    DepNode::DefSpan(def_id)
-}
+}