Revert of [es6] Implement destructuring binding in try/catch

src/preparser.cc

Index: src/preparser.cc
diff --git a/src/preparser.cc b/src/preparser.cc
index b52cca20dd857c4a35d801c6b191fc8a47a5118f..74e11b1d454b3b33a3f6bcadb18f91476a246f37 100644
--- a/src/preparser.cc
+++ b/src/preparser.cc
@@ -1029,12 +1029,9 @@
   if (tok == Token::CATCH) {
     Consume(Token::CATCH);
     Expect(Token::LPAREN, CHECK_OK);
-    ExpressionClassifier pattern_classifier;
-    ParsePrimaryExpression(&pattern_classifier, CHECK_OK);
-    ValidateBindingPattern(&pattern_classifier, CHECK_OK);
+    ParseIdentifier(kDontAllowRestrictedIdentifiers, CHECK_OK);
     Expect(Token::RPAREN, CHECK_OK);
     {
-      // TODO(adamk): Make this CATCH_SCOPE
       Scope* with_scope = NewScope(scope_, WITH_SCOPE);
       BlockState block_state(&scope_, with_scope);
       ParseBlock(CHECK_OK);