Remove unused argument. NFC.

llvm-svn: 232428
diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp b/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
index 0e7f572..3d82704 100644
--- a/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
+++ b/llvm/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp
@@ -344,9 +344,9 @@
   return X;
 }
 
-static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
-                                    MCContext &Ctx, MCAsmBackend &MAB,
-                                    raw_ostream &OS, MCCodeEmitter *Emitter,
+static MCStreamer *createMCStreamer(StringRef TT, MCContext &Ctx,
+                                    MCAsmBackend &MAB, raw_ostream &OS,
+                                    MCCodeEmitter *Emitter,
                                     const MCSubtargetInfo &STI, bool RelaxAll) {
   Triple TheTriple(TT);