[GVN] Fix after 46aac94

replaceUsersOf -> removeUsersOf

Author: chsigg

llvm/lib/Transforms/Scalar/GVN.cpp

@@ -1472,7 +1472,7 @@ void GVNPass::eliminatePartiallyRedundantLoad(
   // Perform PHI construction.
   Value *V = ConstructSSAForLoadSet(Load, ValuesPerBlock, *this);
   // ConstructSSAForLoadSet is responsible for combining metadata.
-  ICF->replaceUsersOf(Load);
+  ICF->removeUsersOf(Load);
   Load->replaceAllUsesWith(V);
   if (isa<PHINode>(V))
     V->takeName(Load);