[ARM] Remove unused declaration computeIssueWidth

The corresponding function definition was removed by:

  commit b2680c718fc49698e820441ed30c692a63476660
  Author: Andrew Trick <atrick@apple.com>
  Date:   Tue Jun 5 03:44:43 2012 +0000

diff --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
index d9cc38e..c959ca5 100644 (file)
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -305,8 +305,6 @@ public:
   bool GETTER() const { return ATTRIBUTE; }
 #include "ARMGenSubtargetInfo.inc"
 
-  void computeIssueWidth();
-
   /// @{
   /// These functions are obsolete, please consider adding subtarget features
   /// or properties instead of calling them.