Remove unused struct fields.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90397 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGVtable.cpp b/lib/CodeGen/CGVtable.cpp
index edcd14c..e6b6383 100644
--- a/lib/CodeGen/CGVtable.cpp
+++ b/lib/CodeGen/CGVtable.cpp
@@ -80,16 +80,11 @@
   struct CovariantThunk {
     CovariantThunk() { }
 
-    CovariantThunk(GlobalDecl GD, const ThunkAdjustment &ReturnAdjustment, 
-                   CanQualType ReturnType) 
-      : GD(GD), ReturnAdjustment(ReturnAdjustment), 
-      ReturnType(ReturnType) { }
+    CovariantThunk(GlobalDecl GD, CanQualType ReturnType) 
+      : GD(GD), ReturnType(ReturnType) { }
 
     GlobalDecl GD;
     
-    /// ReturnAdjustment - The covariant thunk return adjustment.
-    ThunkAdjustment ReturnAdjustment;
-    
     /// ReturnType - The return type of the function.
     CanQualType ReturnType;
   };