Most MCCodeEmitter's don't meed MCContext.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134922 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCMCCodeEmitter.cpp b/lib/Target/PowerPC/PPCMCCodeEmitter.cpp
index 250d545..cf73d86 100644
--- a/lib/Target/PowerPC/PPCMCCodeEmitter.cpp
+++ b/lib/Target/PowerPC/PPCMCCodeEmitter.cpp
@@ -28,12 +28,10 @@
 class PPCMCCodeEmitter : public MCCodeEmitter {
   PPCMCCodeEmitter(const PPCMCCodeEmitter &); // DO NOT IMPLEMENT
   void operator=(const PPCMCCodeEmitter &);   // DO NOT IMPLEMENT
-  MCContext &Ctx;
   
 public:
   PPCMCCodeEmitter(const MCInstrInfo &mcii, const MCSubtargetInfo &sti,
-                   MCContext &ctx)
-    : Ctx(ctx) {
+                   MCContext &ctx) {
   }
   
   ~PPCMCCodeEmitter() {}