[ML] Data Frame Analytics: removing scss overrides for exploration pa…

…ges (#197724)

## Summary

Related meta issue: #140695

Regression model evaluation before:

<img width="1455" alt="image"
src="https://github.com/user-attachments/assets/cfdb794d-4576-4c10-96c1-0b3856857cdd">

After:

<img width="1455" alt="image"
src="https://github.com/user-attachments/assets/4c2bbdf3-85ef-489e-bc3a-1281d3531328">

Classification evaluation before:

<img width="1474" alt="image"
src="https://github.com/user-attachments/assets/e565cac3-8c1d-4e4f-8cac-7ea8abf4358d">

After switching fully to flex layout as we no longer support IE11 and
all the workarounds were no longer needed (Note it's all left aligned
now):

<img width="1467" alt="image"
src="https://github.com/user-attachments/assets/280ea446-17fc-4622-a925-57ef6c01cd89">

### Checklist

Delete any items that are not applicable to this PR.

- [ ] Any text added follows [EUI's writing
guidelines](https://elastic.github.io/eui/#/guidelines/writing), uses
sentence case text and includes [i18n
support](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)
- [ ]
[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)
was added for features that require explanation or tutorials
- [ ] [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
- [ ] [Flaky Test
Runner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1) was
used on any tests changed
- [ ] Any UI touched in this PR is usable by keyboard only (learn more
about [keyboard accessibility](https://webaim.org/techniques/keyboard/))
- [ ] Any UI touched in this PR does not create any new axe failures
(run axe in browser:
[FF](https://addons.mozilla.org/en-US/firefox/addon/axe-devtools/),
[Chrome](https://chrome.google.com/webstore/detail/axe-web-accessibility-tes/lhdoppojpmngadmnindnejefpokejbdd?hl=en-US))
- [ ] If a plugin configuration key changed, check if it needs to be
allowlisted in the cloud and added to the [docker
list](https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker)
- [ ] This renders correctly on smaller devices using a responsive
layout. (You can test this [in your
browser](https://www.browserstack.com/guide/responsive-testing-on-local-server))
- [ ] This was checked for [cross-browser
compatibility](https://www.elastic.co/support/matrix#matrix_browsers)

---------

Co-authored-by: Elastic Machine <[email protected]>
(cherry picked from commit 669dc38)

x-pack/plugins/ml/public/application/data_frame_analytics/_index.scss

@@ -1,5 +1,3 @@
-@import 'pages/analytics_exploration/components/regression_exploration/index';
 @import 'pages/job_map/components/index';
 @import 'pages/analytics_management/components/analytics_list/index';
-@import 'pages/analytics_management/components/create_analytics_button/index';
-@import 'pages/analytics_creation/components/index';
+@import 'pages/analytics_creation/components/index';

x-pack/plugins/ml/public/application/data_frame_analytics/pages/analytics_exploration/components/classification_exploration/classification_exploration.tsx

@@ -19,18 +19,16 @@ interface Props {
 }
 
 export const ClassificationExploration: FC<Props> = ({ jobId }) => (
-  <div className="mlDataFrameAnalyticsClassification">
-    <ExplorationPageWrapper
-      jobId={jobId}
-      title={i18n.translate(
-        'xpack.ml.dataframe.analytics.classificationExploration.tableJobIdTitle',
-        {
-          defaultMessage: 'Destination index for classification job ID {jobId}',
-          values: { jobId },
-        }
-      )}
-      EvaluatePanel={EvaluatePanel}
-      FeatureImportanceSummaryPanel={FeatureImportanceSummaryPanel}
-    />
-  </div>
+  <ExplorationPageWrapper
+    jobId={jobId}
+    title={i18n.translate(
+      'xpack.ml.dataframe.analytics.classificationExploration.tableJobIdTitle',
+      {
+        defaultMessage: 'Destination index for classification job ID {jobId}',
+        values: { jobId },
+      }
+    )}
+    EvaluatePanel={EvaluatePanel}
+    FeatureImportanceSummaryPanel={FeatureImportanceSummaryPanel}
+  />
 );