Rename whitelist api and setting

[cliu123]

Description

• Category (Enhancement, New feature, Bug fix, Test fix, Refactoring, Maintenance, Documentation) Refactoring

Issues Resolved

#1665

Testing

UTs

Check List

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[codecov-commenter]

Codecov Report

Merging #1835 (18c26c3) into main (ad90eff) will decrease coverage by 0.01%.
The diff coverage is 55.81%.

@@             Coverage Diff              @@
##               main    #1835      +/-   ##
============================================
- Coverage     60.82%   60.81%   -0.02%     
  Complexity     3187     3187              
============================================
  Files           253      253              
  Lines         17943    17943              
  Branches       3205     3205              
============================================
- Hits          10914    10912       -2     
- Misses         5452     5453       +1     
- Partials       1577     1578       +1     

Impacted Files	Coverage Δ
...earch/security/dlic/rest/api/MigrateApiAction.java	4.16% <0.00%> (ø)
...urity/dlic/rest/validation/AllowlistValidator.java	100.00% <ø> (ø)
...rg/opensearch/security/securityconf/Migration.java	57.65% <0.00%> (ø)
...a/org/opensearch/security/tools/SecurityAdmin.java	37.74% <0.00%> (+0.24%)	⬆️
...curity/securityconf/impl/AllowlistingSettings.java	80.00% <42.85%> (ø)
...ity/configuration/DlsFilterLevelActionHandler.java	55.27% <66.66%> (ø)
...ch/security/securityconf/DynamicConfigFactory.java	55.26% <80.00%> (ø)
...ty/configuration/ConfigurationLoaderSecurity7.java	65.57% <100.00%> (ø)
...ecurity/configuration/ConfigurationRepository.java	71.97% <100.00%> (ø)
...rch/security/dlic/rest/api/AllowlistApiAction.java	74.19% <100.00%> (ø)
... and 8 more

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[peternied]

This change looks like it completely removes Whitelist api/settings that we have not publicly announced is to be deprecated.

How does this change relate to #1808?