fix: remove unsupported REST API search col with dotted notation on c…

[dpgaspar]

SUMMARY

Nested related fields are not supported on search_columns, FAB issues the following warning:

Filter type not supported for column: last_saved_by.id

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

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 #22440 (f5192ab) into master (2679ee2) will decrease coverage by 11.17%.
The diff coverage is n/a.

❗ Current head f5192ab differs from pull request most recent head a998b55. Consider uploading reports for the commit a998b55 to get more accurate results

@@             Coverage Diff             @@
##           master   #22440       +/-   ##
===========================================
- Coverage   66.90%   55.73%   -11.18%     
===========================================
  Files        1850     1850               
  Lines       70701    70701               
  Branches     7750     7750               
===========================================
- Hits        47306    39402     -7904     
- Misses      21379    29283     +7904     
  Partials     2016     2016               

Flag	Coverage Δ
hive	52.46% <ø> (ø)
mysql	?
postgres	?
presto	52.35% <ø> (ø)
python	57.78% <ø> (-23.47%)	⬇️
sqlite	?
unit	50.94% <ø> (ø)

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

Impacted Files	Coverage Δ
superset/charts/api.py	50.37% <ø> (-35.83%)	⬇️
superset/utils/dashboard_import_export.py	0.00% <0.00%> (-100.00%)	⬇️
superset/tags/core.py	4.54% <0.00%> (-95.46%)	⬇️
superset/key_value/commands/update.py	0.00% <0.00%> (-90.91%)	⬇️
superset/key_value/commands/delete.py	0.00% <0.00%> (-87.88%)	⬇️
superset/key_value/commands/delete_expired.py	0.00% <0.00%> (-84.00%)	⬇️
superset/dashboards/commands/importers/v0.py	15.62% <0.00%> (-76.25%)	⬇️
superset/datasets/commands/create.py	30.61% <0.00%> (-69.39%)	⬇️
superset/datasets/commands/update.py	25.00% <0.00%> (-69.05%)	⬇️
superset/datasets/commands/importers/v0.py	24.03% <0.00%> (-69.00%)	⬇️
... and 282 more

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[villebro]

Good to know! LGTM