fix: OPTIC-1229: Remove if getattr(settings, 'CLOUD_INSTANCE', False)

[luarmr]

This code is being tested enough and we want to bring in to onprem customers and open source.

[netlify]

✅ Deploy Preview for heartex-docs canceled.

Name	Link
🔨 Latest commit	137ceca
🔍 Latest deploy log	https://app.netlify.com/sites/heartex-docs/deploys/671003994f9f52000845d69d

[netlify]

✅ Deploy Preview for label-studio-docs-new-theme canceled.

Name	Link
🔨 Latest commit	137ceca
🔍 Latest deploy log	https://app.netlify.com/sites/label-studio-docs-new-theme/deploys/67100399d6f064000820c8a7

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 76.67%. Comparing base (82b9e3c) to head (137ceca).
Report is 16 commits behind head on develop.

Files with missing lines	Patch %	Lines
label_studio/users/serializers.py	50.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #6530   +/-   ##
========================================
  Coverage    76.67%   76.67%           
========================================
  Files          169      169           
  Lines        13778    13773    -5     
========================================
- Hits         10564    10561    -3     
+ Misses        3214     3212    -2     

Flag	Coverage Δ
pytests	76.67% <60.00%> (+<0.01%)	⬆️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.