Remove runtime flags for sloppy mode block scoping features

test/mjsunit/es6/block-let-contextual-sloppy.js

Index: test/mjsunit/es6/block-let-contextual-sloppy.js
diff --git a/test/mjsunit/es6/block-let-contextual-sloppy.js b/test/mjsunit/es6/block-let-contextual-sloppy.js
index ac7bca107eeec96fc2973a09cb563973c14d9d22..8282d779a19635df91ceb3c555f9dbf5049a4c95 100644
--- a/test/mjsunit/es6/block-let-contextual-sloppy.js
+++ b/test/mjsunit/es6/block-let-contextual-sloppy.js
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --harmony-sloppy --harmony-sloppy-let
-
 // let is usable as a variable with var, but not let or ES6 const
 
 (function (){