[Feature flag] Removal/tracking of `global_search_*_tab` ops feature flags
What
Remove the :global_search_*_tab
feature flags when the search cluster is stable and we don't need to use them anymore.
Feature flags:
global_search_code_tab
global_search_commits_tab
global_search_issues_tab
global_search_merge_requests_tab
global_search_wiki_tab
Owners
- Team: Global Search
- Most appropriate slack channel to reach out to:
#g_global_search
- Best individual to reach out to: @dgruzd