Prune includes in X86 target.

llvm-svn: 204216
diff --git a/llvm/lib/Target/X86/TargetInfo/X86TargetInfo.cpp b/llvm/lib/Target/X86/TargetInfo/X86TargetInfo.cpp
index 815d235..1ea8798 100644
--- a/llvm/lib/Target/X86/TargetInfo/X86TargetInfo.cpp
+++ b/llvm/lib/Target/X86/TargetInfo/X86TargetInfo.cpp
@@ -7,8 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "X86.h"
-#include "llvm/IR/Module.h"
+#include "MCTargetDesc/X86MCTargetDesc.h"
 #include "llvm/Support/TargetRegistry.h"
 using namespace llvm;