Revert of ES6 computed property names

src/full-codegen.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/ast.h"
 #include "src/ast-numbering.h"
 #include "src/code-factory.h"
 #include "src/codegen.h"
@@ skipping 1193 matching lines @@
   NestedStatement* current = nesting_stack_;
   int stack_depth = 0;
   int context_length = 0;
   while (current != NULL) {
     current = current->Exit(&stack_depth, &context_length);
   }
   __ Drop(stack_depth);
 }
 
 
-void FullCodeGenerator::EmitPropertyKey(ObjectLiteralProperty* property) {
-  VisitForStackValue(property->key());
-  __ InvokeBuiltin(Builtins::TO_NAME, CALL_FUNCTION);
-  __ Push(result_register());
-}
-
-
 void FullCodeGenerator::VisitReturnStatement(ReturnStatement* stmt) {
   Comment cmnt(masm_, "[ ReturnStatement");
   SetStatementPosition(stmt);
   Expression* expr = stmt->expression();
   VisitForAccumulatorValue(expr);
   EmitUnwindBeforeReturn();
   EmitReturnSequence();
 }
 
 
@@ skipping 595 matching lines @@
   }
   codegen_->PrepareForBailoutForId(exit_id_, NO_REGISTERS);
   codegen_->scope_ = saved_scope_;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal