[MIPS] Remove obsolete MacroAssembler::FlushICache.

src/mips64/macro-assembler-mips64.cc

 // 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.
 
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_MIPS64
 
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
@@ skipping 1416 matching lines @@
   for (int16_t i = kNumRegisters - 1; i >= 0; i--) {
     if ((regs & (1 << i)) != 0) {
       ldc1(FPURegister::from_code(i), MemOperand(sp, stack_offset));
       stack_offset += kDoubleSize;
     }
   }
   daddiu(sp, sp, stack_offset);
 }
 
 
-void MacroAssembler::FlushICache(Register address, unsigned instructions) {
-  RegList saved_regs = kJSCallerSaved | ra.bit();
-  MultiPush(saved_regs);
-  AllowExternalCallThatCantCauseGC scope(this);
-
-  Move(a0, address);
-  PrepareCallCFunction(2, t8);
-
-  li(a1, instructions * kInstrSize);
-  CallCFunction(ExternalReference::flush_icache_function(isolate()), 2);
-  MultiPop(saved_regs);
-}
-
-
 void MacroAssembler::Ext(Register rt,
                          Register rs,
                          uint16_t pos,
                          uint16_t size) {
   DCHECK(pos < 32);
   DCHECK(pos + size < 33);
   ext_(rt, rs, pos, size);
 }
 
 
@@ skipping 4746 matching lines @@
   if (mag.shift > 0) sra(result, result, mag.shift);
   srl(at, dividend, 31);
   Addu(result, result, Operand(at));
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64