Build: Use jscs to check test helpers

Also fix issues found by jscs

test/data/testinit.js

@@ -201,7 +201,6 @@ this.ajaxTest = function( title, expect, options ) {
 	});
 };
 
-
 this.testIframe = function( fileName, name, fn ) {
 	asyncTest(name, function() {
 

test/data/testrunner.js

@@ -124,7 +124,6 @@ window.moduleTeardown = function() {
 		oldActive = jQuery.active;
 	}
 
-
 	for ( i in jQuery.cache ) {
 		++cacheLength;
 	}