[v8] Move all the RelocInfo::set_target_address function into one place.

src/x64/assembler-x64-inl.h

Index: src/x64/assembler-x64-inl.h
diff --git a/src/x64/assembler-x64-inl.h b/src/x64/assembler-x64-inl.h
index 0607bfce78c46020648293b6ce949cbe581e3f5d..518df5a47ccd019703197c8ef709ff425fc4713a 100644
--- a/src/x64/assembler-x64-inl.h
+++ b/src/x64/assembler-x64-inl.h
@@ -350,20 +350,6 @@ int RelocInfo::target_address_size() {
 }
 
 
-void RelocInfo::set_target_address(Address target,
-                                   WriteBarrierMode write_barrier_mode,
-                                   ICacheFlushMode icache_flush_mode) {
-  DCHECK(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_));
-  Assembler::set_target_address_at(isolate_, pc_, host_, target,
-                                   icache_flush_mode);
-  if (write_barrier_mode == UPDATE_WRITE_BARRIER && host() != NULL &&
-      IsCodeTarget(rmode_)) {
-    Object* target_code = Code::GetCodeFromTargetAddress(target);
-    host()->GetHeap()->incremental_marking()->RecordWriteIntoCode(
-        host(), this, HeapObject::cast(target_code));
-  }
-}
-
 Object* RelocInfo::target_object() {
   DCHECK(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
   return Memory::Object_at(pc_);