[ic] Delete old KeyedLoadIC code

src/builtins/builtins-handler.cc

 // Copyright 2016 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 "src/builtins/builtins.h"
 #include "src/builtins/builtins-utils.h"
 #include "src/ic/handler-compiler.h"
 #include "src/ic/ic.h"
 
 namespace v8 {
 namespace internal {
 
-void Builtins::Generate_KeyedLoadIC_Megamorphic(MacroAssembler* masm) {
-  KeyedLoadIC::GenerateMegamorphic(masm);
-}
-
 void Builtins::Generate_KeyedLoadIC_Megamorphic_TF(
     CodeStubAssembler* assembler) {
   typedef compiler::Node Node;
   typedef LoadWithVectorDescriptor Descriptor;
 
   Node* receiver = assembler->Parameter(Descriptor::kReceiver);
   Node* name = assembler->Parameter(Descriptor::kName);
   Node* slot = assembler->Parameter(Descriptor::kSlot);
   Node* vector = assembler->Parameter(Descriptor::kVector);
   Node* context = assembler->Parameter(Descriptor::kContext);
@@ skipping 127 matching lines @@
 void Builtins::Generate_StoreIC_SlowSloppy(CodeStubAssembler* assembler) {
   Generate_StoreIC_Slow(assembler, SLOPPY);
 }
 
 void Builtins::Generate_StoreIC_SlowStrict(CodeStubAssembler* assembler) {
   Generate_StoreIC_Slow(assembler, STRICT);
 }
 
 }  // namespace internal
 }  // namespace v8