[cleanup] Drop handwritten KeyedStoreIC code

src/ic/stub-cache.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_STUB_CACHE_H_
 #define V8_STUB_CACHE_H_
 
 #include "src/macro-assembler.h"
 
 namespace v8 {
@@ skipping 30 matching lines @@
 
   void Initialize();
   // Access cache for entry hash(name, map).
   Object* Set(Name* name, Map* map, Object* handler);
   Object* Get(Name* name, Map* map);
   // Clear the lookup table (@ mark compact collection).
   void Clear();
   // Collect all maps that match the name.
   void CollectMatchingMaps(SmallMapList* types, Handle<Name> name,
                            Handle<Context> native_context, Zone* zone);
-  // Generate code for probing the stub cache table.
-  // Arguments extra, extra2 and extra3 may be used to pass additional scratch
-  // registers. Set to no_reg if not needed.
-  // If leave_frame is true, then exit a frame before the tail call.
-  void GenerateProbe(MacroAssembler* masm, Register receiver, Register name,
-                     Register scratch, Register extra, Register extra2 = no_reg,
-                     Register extra3 = no_reg);
 
   enum Table { kPrimary, kSecondary };
 
   SCTableReference key_reference(StubCache::Table table) {
     return SCTableReference(
         reinterpret_cast<Address>(&first_entry(table)->key));
   }
 
   SCTableReference map_reference(StubCache::Table table) {
     return SCTableReference(
@@ skipping 100 matching lines @@
 
   friend class Isolate;
   friend class SCTableReference;
 
   DISALLOW_COPY_AND_ASSIGN(StubCache);
 };
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_STUB_CACHE_H_