chore: Remove obsolete legacy visualizations

[john-bodley]

SUMMARY

This is a rehash of #24675 without the deprecation of the TableViz as sadly the legacy visualization is deeply entangled with the annotation layers. Specifically this PR removes the following obsolete chart types:

• BigNumberViz
• BigNumberTotalViz

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

CI.

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 #24692 (acc08fa) into master (462418b) will decrease coverage by 0.08%.
The diff coverage is 91.12%.

❗ Current head acc08fa differs from pull request most recent head 090ced2. Consider uploading reports for the commit 090ced2 to get more accurate results

@@            Coverage Diff             @@
##           master   #24692      +/-   ##
==========================================
- Coverage   69.03%   68.96%   -0.08%     
==========================================
  Files        1908     1901       -7     
  Lines       74210    73965     -245     
  Branches     8186     8182       -4     
==========================================
- Hits        51232    51007     -225     
+ Misses      20857    20837      -20     
  Partials     2121     2121              

Flag	Coverage Δ
hive	54.13% <20.49%> (+0.01%)	⬆️
mysql	79.34% <91.80%> (-0.09%)	⬇️
postgres	79.42% <91.80%> (-0.09%)	⬇️
presto	54.03% <20.49%> (+0.01%)	⬆️
python	83.44% <91.80%> (-0.06%)	⬇️
sqlite	78.01% <80.32%> (-0.07%)	⬇️
unit	54.85% <20.49%> (+0.01%)	⬆️

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

Impacted Files	Coverage Δ
superset/reports/commands/exceptions.py	98.33% <ø> (-0.03%)	⬇️
superset/viz.py	66.21% <ø> (-0.70%)	⬇️
.../plugin-chart-pivot-table/src/plugin/buildQuery.ts	73.33% <50.00%> (+1.90%)	⬆️
superset/annotation_layers/api.py	86.20% <50.00%> (-0.12%)	⬇️
superset/css_templates/commands/delete.py	87.50% <50.00%> (ø)
superset/queries/saved_queries/commands/delete.py	87.50% <50.00%> (ø)
superset/row_level_security/commands/delete.py	86.36% <50.00%> (ø)
superset/annotation_layers/annotations/api.py	89.23% <66.66%> (-0.09%)	⬇️
superset/css_templates/api.py	95.74% <66.66%> (ø)
superset/datasets/api.py	88.62% <66.66%> (-0.04%)	⬇️
... and 20 more

... and 2 files with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[michael-s-molina]

LGTM

[john-bodley]

Closing in favor of #24694.