Remove unused private member variables found by clang's new -Wunused-private-field.

llvm-svn: 158086
diff --git a/clang/lib/CodeGen/CodeGenTBAA.cpp b/clang/lib/CodeGen/CodeGenTBAA.cpp
index e9164dc..bab60af 100644
--- a/clang/lib/CodeGen/CodeGenTBAA.cpp
+++ b/clang/lib/CodeGen/CodeGenTBAA.cpp
@@ -29,8 +29,7 @@
 CodeGenTBAA::CodeGenTBAA(ASTContext &Ctx, llvm::LLVMContext& VMContext,
                          const CodeGenOptions &CGO,
                          const LangOptions &Features, MangleContext &MContext)
-  : Context(Ctx), VMContext(VMContext), CodeGenOpts(CGO),
-    Features(Features), MContext(MContext),
+  : Context(Ctx), CodeGenOpts(CGO), Features(Features), MContext(MContext),
     MDHelper(VMContext), Root(0), Char(0) {
 }