Do not lose debug info of an inlined function argument even if the argument is only used through GEPs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125794 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/SelectionDAG.h

@@ -100,10 +100,6 @@ public:
     return DbgValMap[Node];
   }
 
-  void removeSDDbgValues(const SDNode *Node) {
-    DbgValMap.erase(Node);
-  }
-
   typedef SmallVector<SDDbgValue*,32>::iterator DbgIterator;
   DbgIterator DbgBegin() { return DbgValues.begin(); }
   DbgIterator DbgEnd()   { return DbgValues.end(); }