Remove no longer needed allow_unused

harness/sm/non262-Date-shell.js

@@ -1,6 +1,5 @@
 /*---
 defines: [runDSTOffsetCachingTestsFraction]
-allow_unused: True
 ---*/
 
 function runDSTOffsetCachingTestsFraction(part, parts)

harness/sm/non262-JSON-shell.js

@@ -1,6 +1,5 @@
 /*---
 defines: [testJSON, testJSONSyntaxError]
-allow_unused: True
 ---*/
 
 function testJSON(str) {

harness/sm/non262-Reflect-shell.js

@@ -1,6 +1,5 @@
 /*---
 defines: [SOME_PRIMITIVE_VALUES]
-allow_unused: True
 ---*/
 
 // List of a few values that are not objects.

harness/sm/non262-Set-shell.js

@@ -1,6 +1,5 @@
 /*---
 defines: [assertSetContainsExactOrderedItems, SetLike, SetIteratorLike, LoggingProxy]
-allow_unused: True
 ---*/
 (function(global) {
   // Save the primordial values.

harness/sm/non262-expressions-shell.js

@@ -4,7 +4,6 @@
 
 /*---
 defines: [testDestructuringArrayDefault]
-allow_unused: True
 ---*/
 
 (function(global) {

harness/sm/non262-generators-shell.js

@@ -3,7 +3,6 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /*---
 defines: [assertIteratorResult, assertIteratorNext, assertIteratorDone]
-allow_unused: True
 ---*/
 
 function assertIteratorResult(result, value, done) {