style(tests): remove trailing comma in specs

Closes #6241

Author: clkao

test/ng/httpSpec.js

@@ -676,7 +676,7 @@ describe('$http', function() {
         }).respond('');
 
         $http({url: '/url', method: 'GET', headers: {
-          'Custom': 'header',
+          'Custom': 'header'
         }});
 
         $httpBackend.flush();

test/ng/intervalSpec.js

@@ -14,7 +14,7 @@ describe('$interval', function() {
           nextTime:(now + delay),
           delay: delay,
           fn: fn,
-          id: nextRepeatId,
+          id: nextRepeatId
         });
         repeatFns.sort(function(a,b){ return a.nextTime - b.nextTime;});
 

test/ng/sceSpecs.js

@@ -436,7 +436,7 @@ describe('SCE', function() {
     it('should support multiple items in both lists', runTest(
       {
         whiteList: [/^http:\/\/example.com\/1$/, /^http:\/\/example.com\/2$/, /^http:\/\/example.com\/3$/, 'self'],
-        blackList: [/^http:\/\/example.com\/3$/, /.*\/open_redirect/],
+        blackList: [/^http:\/\/example.com\/3$/, /.*\/open_redirect/]
       }, function($sce) {
         expect($sce.getTrustedResourceUrl('same_domain')).toEqual('same_domain');
         expect($sce.getTrustedResourceUrl('http://example.com/1')).toEqual('http://example.com/1');