Factor ARM triple parsing out of ARMSubtarget. Another step towards making ARM subtarget info available to MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134569 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMTargetMachine.h b/lib/Target/ARM/ARMTargetMachine.h
index a4a7927..bc3d46a 100644
--- a/lib/Target/ARM/ARMTargetMachine.h
+++ b/lib/Target/ARM/ARMTargetMachine.h
@@ -41,8 +41,7 @@
 
 public:
   ARMBaseTargetMachine(const Target &T, const std::string &TT,
-                       const std::string &CPU, const std::string &FS,
-                       bool isThumb);
+                       const std::string &CPU, const std::string &FS);
 
   virtual       ARMJITInfo       *getJITInfo()         { return &JITInfo; }
   virtual const ARMSubtarget  *getSubtargetImpl() const { return &Subtarget; }