[arm] Clean up handling of usat.

src/arm/macro-assembler-arm.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_ARM_MACRO_ASSEMBLER_ARM_H_
 #define V8_ARM_MACRO_ASSEMBLER_ARM_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 139 matching lines @@
   // The scratch register is not used for ARMv7.
   // scratch can be the same register as src (in which case it is trashed), but
   // not the same as dst.
   void Bfi(Register dst,
            Register src,
            Register scratch,
            int lsb,
            int width,
            Condition cond = al);
   void Bfc(Register dst, Register src, int lsb, int width, Condition cond = al);
-  void Usat(Register dst, int satpos, const Operand& src,
-            Condition cond = al);
 
   void Call(Label* target);
   void Push(Register src) { push(src); }
   void Pop(Register dst) { pop(dst); }
 
   // Register move. May do nothing if the registers are identical.
   void Move(Register dst, Smi* smi) { mov(dst, Operand(smi)); }
   void Move(Register dst, Handle<Object> value);
   void Move(Register dst, Register src, Condition cond = al);
   void Move(Register dst, const Operand& src, SBit sbit = LeaveCC,
@@ skipping 1407 matching lines @@
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_ARM_MACRO_ASSEMBLER_ARM_H_