chore: Deprecates 3.0 consented feature flags

[michael-s-molina]

SUMMARY

Deprecates the following feature flags that received lazy consensus for 3.0:

• CLIENT_CACHE
• DASHBOARD_CACHE
• DASHBOARD_FILTERS_EXPERIMENTAL
• DASHBOARD_NATIVE_FILTERS
• DASHBOARD_NATIVE_FILTERS_SET
• DISABLE_DATASET_SOURCE_EDIT
• ENABLE_EXPLORE_JSON_CSRF_PROTECTION
• REMOVE_SLICE_LEVEL_LABEL_COLORS

DASHBOARD_EDIT_CHART_IN_NEW_TAB was removed as the feature is supported without the need for a feature flag.

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #23785 (8244ed6) into master (09bd40b) will increase coverage by 0.00%.
The diff coverage is n/a.

❗ Current head 8244ed6 differs from pull request most recent head 8d0b459. Consider uploading reports for the commit 8d0b459 to get more accurate results

@@           Coverage Diff           @@
##           master   #23785   +/-   ##
=======================================
  Coverage   68.02%   68.03%           
=======================================
  Files        1936     1936           
  Lines       74930    74926    -4     
  Branches     8141     8137    -4     
=======================================
- Hits        50974    50973    -1     
+ Misses      21870    21868    -2     
+ Partials     2086     2085    -1     

Flag	Coverage Δ
hive	53.00% <ø> (ø)
mysql	78.80% <ø> (ø)
postgres	78.87% <ø> (ø)
presto	52.92% <ø> (ø)
python	82.67% <ø> (ø)
sqlite	77.39% <ø> (ø)
unit	52.81% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ackages/superset-ui-core/src/utils/featureFlags.ts	100.00% <ø> (ø)
.../src/dashboard/components/gridComponents/Chart.jsx	56.48% <ø> (+1.02%)	⬆️
...ntend/src/dashboard/util/getSliceHeaderTooltip.tsx	83.33% <ø> (+8.33%)	⬆️
superset/config.py	91.88% <ø> (ø)

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[rusackas]

Thank you for the cleanup! Now I'm excited for 4.0 as much as 3.0 :)

[wdepiatti]

I have a problem with the native filter that disappears, when I use docker-compose-image-tag.yml, the version is 3.1.1
. But... when I run docker-compose-non-dev.yml, version 0.0.0-dev and native filters appear, I've already carried out a search, I can't activate the filter in version 3.1.1