UHF-X: Remove deprecated code

[hyrsky]

• Remove support for OPENSHIFT_BUILD_NAMESPACE environment variable.
• Uninstall flysystem_azure in an update hook, since it is no longer required by ^2.0.0.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (92684fb) 23.94% compared to head (5d15141) 23.30%.

❗ Current head 5d15141 differs from pull request most recent head 86bd00b. Consider uploading reports for the commit 86bd00b to get more accurate results

Additional details and impacted files

@@             Coverage Diff              @@
##               main      #22      +/-   ##
============================================
- Coverage     23.94%   23.30%   -0.65%     
+ Complexity       77       76       -1     
============================================
  Files             4        4              
  Lines           238      236       -2     
============================================
- Hits             57       55       -2     
  Misses          181      181              

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