MAGETWO-31592: Javascript Unit Test Framework Update

 - pageCache should not inited on body inside widget. It inited inside page with own settings.

Author: guz-anton

dev/tests/js/spec/integration/Magento/PageCache/frontend/js/pageCache.js

@@ -302,12 +302,5 @@ define([
 
             expect(wdContainer.html()).toEqual('<span>FAKE_HTML</span>');
         });
-
-        it('widget exist on load on body', function (done) {
-            $(function () {
-                expect($('body').data('magePageCache')).toBeDefined();
-                done();
-            });
-        });
     });
 });