[MIPS] Remove obsolete MacroAssembler::FlushICache.

src/assembler.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 1030 matching lines @@
 
 
 ExternalReference ExternalReference::
     store_buffer_overflow_function(Isolate* isolate) {
   return ExternalReference(Redirect(
       isolate,
       FUNCTION_ADDR(StoreBuffer::StoreBufferOverflow)));
 }
 
 
-ExternalReference ExternalReference::flush_icache_function(Isolate* isolate) {
-  return ExternalReference(
-      Redirect(isolate, FUNCTION_ADDR(Assembler::FlushICacheWithoutIsolate)));
-}
-
-
 ExternalReference ExternalReference::delete_handle_scope_extensions(
     Isolate* isolate) {
   return ExternalReference(Redirect(
       isolate,
       FUNCTION_ADDR(HandleScope::DeleteExtensions)));
 }
 
 
 ExternalReference ExternalReference::get_date_field_function(
     Isolate* isolate) {
@@ skipping 779 matching lines @@
 
 
 void Assembler::DataAlign(int m) {
   DCHECK(m >= 2 && base::bits::IsPowerOfTwo32(m));
   while ((pc_offset() & (m - 1)) != 0) {
     db(0);
   }
 }
 }  // namespace internal
 }  // namespace v8