Remove unused code for IsFutureStrictReserved.

src/parsing/parser.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_PARSING_PARSER_H_
 #define V8_PARSING_PARSER_H_
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 #include "src/base/compiler-specific.h"
@@ skipping 672 matching lines @@
   }
 
   V8_INLINE bool IsEvalOrArguments(const AstRawString* identifier) const {
     return IsEval(identifier) || IsArguments(identifier);
   }
 
   V8_INLINE bool IsUndefined(const AstRawString* identifier) const {
     return identifier == ast_value_factory()->undefined_string();
   }
 
-  V8_INLINE bool IsFutureStrictReserved(const AstRawString* identifier) const {
-    return scanner()->IdentifierIsFutureStrictReserved(identifier);
-  }
-
   // Returns true if the expression is of type "this.foo".
   V8_INLINE static bool IsThisProperty(Expression* expression) {
     DCHECK(expression != NULL);
     Property* property = expression->AsProperty();
     return property != NULL && property->obj()->IsVariableProxy() &&
            property->obj()->AsVariableProxy()->is_this();
   }
 
   // This returns true if the expression is an indentifier (wrapped
   // inside a variable proxy).  We exclude the case of 'this', which
@@ skipping 485 matching lines @@
 
  private:
   ParserTarget** variable_;
   ParserTarget* previous_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_H_