Remove unused local variable after r11023.

src/hydrogen.cc

 // Copyright 2012 the V8 project authors. 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.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3722 matching lines @@
     switch (property->kind()) {
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
         ASSERT(!CompileTimeValue::IsCompileTimeValue(value));
         // Fall through.
       case ObjectLiteral::Property::COMPUTED:
         if (key->handle()->IsSymbol()) {
           if (property->emit_store()) {
             property->RecordTypeFeedback(oracle());
             CHECK_ALIVE(VisitForValue(value));
             HValue* value = Pop();
-            Handle<String> name = Handle<String>::cast(key->handle());
             HInstruction* store = BuildStoreNamed(literal, value, property);
             AddInstruction(store);
             if (store->HasObservableSideEffects()) AddSimulate(key->id());
           } else {
             CHECK_ALIVE(VisitForEffect(value));
           }
           break;
         }
         // Fall through.
       case ObjectLiteral::Property::PROTOTYPE:
@@ skipping 4360 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify(false);  // No full verify.
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal