Merge branch '498651-remove-ci_variables_optimize_kubernetes_variables' into 'master'

Remove the FF ci_variables_optimize_kubernetes_variables

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/173676



Merged-by: Rajendra Kadam <rkadam@gitlab.com>
Approved-by: Rajendra Kadam <rkadam@gitlab.com>
Co-authored-by: Furkan Ayhan <furkanayhn@gmail.com>