Revert r97674; it's causing failures

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97677 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/TreeTransform.h b/lib/Sema/TreeTransform.h
index 24ea62c..2f3c482 100644
--- a/lib/Sema/TreeTransform.h
+++ b/lib/Sema/TreeTransform.h
@@ -969,7 +969,7 @@
       assert(!Qualifier && "Can't have an unnamed field with a qualifier!");
 
       Expr *BaseExpr = Base.takeAs<Expr>();
-      if (getSema().PerformObjectMemberConversion(BaseExpr, Qualifier, Member))
+      if (getSema().PerformObjectMemberConversion(BaseExpr, Member))
         return getSema().ExprError();
 
       MemberExpr *ME =