Remove unnecessary RewriteNonPatternArguments

src/parsing/preparser.h

Index: src/parsing/preparser.h
diff --git a/src/parsing/preparser.h b/src/parsing/preparser.h
index 1082a4d1ecb5c93dfd0a918276cc25057f7898e3..a477e1a52eacd0bb09d1c660d6e3659712760e7b 100644
--- a/src/parsing/preparser.h
+++ b/src/parsing/preparser.h
@@ -936,9 +936,6 @@ class PreParserTraits {
   inline PreParserExpression RewriteNonPattern(
       PreParserExpression expr, const ExpressionClassifier* classifier,
       bool* ok);
-  inline PreParserExpression RewriteNonPatternArguments(
-      PreParserExpression args, const ExpressionClassifier* classifier,
-      bool* ok);
   inline PreParserExpression RewriteNonPatternObjectLiteralProperty(
       PreParserExpression property, const ExpressionClassifier* classifier,
       bool* ok);
@@ -1132,14 +1129,6 @@ PreParserExpression PreParserTraits::RewriteNonPattern(
 }
 
 
-PreParserExpression PreParserTraits::RewriteNonPatternArguments(
-    PreParserExpression args, const ExpressionClassifier* classifier,
-    bool* ok) {
-  pre_parser_->ValidateExpression(classifier, ok);
-  return args;
-}
-
-
 PreParserExpression PreParserTraits::RewriteNonPatternObjectLiteralProperty(
     PreParserExpression property, const ExpressionClassifier* classifier,
     bool* ok) {