xcore TAI doesn't need TM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77868 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/XCore/XCoreTargetAsmInfo.h

@@ -17,10 +17,9 @@
 #include "llvm/Target/TargetAsmInfo.h"
 
 namespace llvm {
-  class TargetMachine;
   class XCoreTargetAsmInfo : public TargetAsmInfo {
   public:
-    explicit XCoreTargetAsmInfo(const TargetMachine &TM);
+    explicit XCoreTargetAsmInfo();
   };
 
 } // namespace llvm