Stray assertion

TBR=marja@chromium.org
BUG=

Review URL: https://codereview.chromium.org/381093002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22327 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/parser.cc

@@ -1401,8 +1401,6 @@ Statement* Parser::ParseExportDeclaration(bool* ok) {
   //
   // TODO(ES6): implement structuring ExportSpecifiers
 
-  ASSERT(strict_mode() == STRICT);
-
   Expect(Token::EXPORT, CHECK_OK);
 
   Statement* result = NULL;