Test fix management scripted field filter functional test and unskip …

…it (elastic#92756)

* fixes elastic#74449

* unskipping the functional test, removing the unload and adding an empty kibana in the after method

test/functional/apps/management/_scripted_fields_filter.js

@@ -16,9 +16,7 @@ export default function ({ getService, getPageObjects }) {
   const esArchiver = getService('esArchiver');
   const PageObjects = getPageObjects(['settings']);
 
-  // this functionality is no longer functional as of 7.0 but still needs cleanup
-  // https://github.com/elastic/kibana/issues/74118
-  describe.skip('filter scripted fields', function describeIndexTests() {
+  describe('filter scripted fields', function describeIndexTests() {
     before(async function () {
       // delete .kibana index and then wait for Kibana to re-create it
       await browser.setWindowSize(1200, 800);
@@ -29,8 +27,7 @@ export default function ({ getService, getPageObjects }) {
     });
 
     after(async function () {
-      await esArchiver.unload('management');
-      await kibanaServer.uiSettings.replace({});
+      await esArchiver.load('empty_kibana');
     });
 
     const scriptedPainlessFieldName = 'ram_pain1';