chore: Cleanup hostNamesConfig.js

[john-bodley]

SUMMARY

Flexing my very limited frontend knowledge to cleanup checking for whether bootstrapData.common.conf.SUPERSET_WEBSERVER_DOMAINS is defined.

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 #25543 (df5beae) into master (0c40bea) will increase coverage by 0.61%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master   #25543      +/-   ##
==========================================
+ Coverage   68.51%   69.13%   +0.61%     
==========================================
  Files        1915     1915              
  Lines       75100    75100              
  Branches     8314     8314              
==========================================
+ Hits        51455    51920     +465     
+ Misses      21503    21038     -465     
  Partials     2142     2142              

Flag	Coverage Δ
hive	53.68% <ø> (ø)
javascript	56.32% <100.00%> (+<0.01%)	⬆️
mysql	78.34% <ø> (?)
postgres	78.44% <ø> (?)
presto	53.63% <ø> (ø)
python	82.86% <ø> (+1.27%)	⬆️
sqlite	77.08% <ø> (ø)
unit	55.45% <ø> (ø)

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

Files	Coverage Δ
superset-frontend/src/utils/hostNamesConfig.js	73.33% <100.00%> (ø)

... and 38 files with indirect coverage changes

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