[ML] Unskips data frame analytics functional tests (#163377)

## Summary

Unskips the data frame analytics tests that were fixed in
#163343 and skipped in
#163220 and
#163338

### Checklist

- [x] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios

x-pack/test/functional/apps/ml/data_frame_analytics/outlier_detection_creation.ts

@@ -184,8 +184,7 @@ export default function ({ getService }: FtrProviderContext) {
     ];
 
     for (const testData of testDataList) {
-      // FLAKY: https://github.com/elastic/kibana/issues/163220
-      describe.skip(`${testData.suiteTitle}`, function () {
+      describe(`${testData.suiteTitle}`, function () {
         after(async () => {
           await ml.api.deleteIndices(testData.destinationIndex);
           await ml.testResources.deleteIndexPatternByTitle(testData.destinationIndex);

x-pack/test/functional/apps/ml/data_frame_analytics/regression_creation.ts

@@ -189,8 +189,7 @@ export default function ({ getService }: FtrProviderContext) {
     ];
 
     for (const testData of testDataList) {
-      // FAILED ES PROMOTION: https://github.com/elastic/kibana/issues/163338
-      describe.skip(`${testData.suiteTitle}`, function () {
+      describe(`${testData.suiteTitle}`, function () {
         after(async () => {
           await ml.api.deleteIndices(testData.destinationIndex);
           await ml.testResources.deleteIndexPatternByTitle(testData.destinationIndex);