Revert of ES6 computed property names

src/full-codegen.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_FULL_CODEGEN_H_
 #define V8_FULL_CODEGEN_H_
 
 #include "src/v8.h"
 
 #include "src/allocation.h"
@@ skipping 550 matching lines @@
 
   // Load a value from a keyed property.
   // The receiver and the key is left on the stack by the IC.
   void EmitKeyedPropertyLoad(Property* expr);
 
   // Adds the properties to the class (function) object and to its prototype.
   // Expects the class (function) in the accumulator. The class (function) is
   // in the accumulator after installing all the properties.
   void EmitClassDefineProperties(ClassLiteral* lit);
 
-  // Pushes the property key as a Name on the stack.
-  void EmitPropertyKey(ObjectLiteralProperty* property);
-
   // Apply the compound assignment operator. Expects the left operand on top
   // of the stack and the right one in the accumulator.
   void EmitBinaryOp(BinaryOperation* expr,
                     Token::Value op,
                     OverwriteMode mode);
 
   // Helper functions for generating inlined smi code for certain
   // binary operations.
   void EmitInlineSmiBinaryOp(BinaryOperation* expr,
                              Token::Value op,
@@ skipping 455 matching lines @@
 
   Address start_;
   Address instruction_start_;
   uint32_t length_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FULL_CODEGEN_H_