drop newProxyWithClusterClient function and related unnecessary client creation

[MatousJobanek]

drop newProxyWithClusterClient function and related unnecessary client creation as it's not used for anything

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.47%. Comparing base (6d3e720) to head (9861657).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #472      +/-   ##
==========================================
+ Coverage   81.86%   82.47%   +0.60%     
==========================================
  Files          42       42              
  Lines        2708     2687      -21     
==========================================
- Hits         2217     2216       -1     
+ Misses        405      385      -20     
  Partials       86       86              

Flag	Coverage Δ
unittests	82.47% <ø> (+0.60%)	⬆️

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alexeykazakov, MatousJobanek, mfrancisc, xcoulon

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• OWNERS [MatousJobanek,alexeykazakov,mfrancisc,xcoulon]

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