The GEHelpPanelSearchEnabled feature flag was introduced before we had finalized search features for the help panel. In mediawiki-config this property is set to true for all wikis, and as far as I know we don't plan to deploy help panel to wikis with the search switched off. So, I propose we remove this code to ease maintenance burden and cognitive load when working with help panel.
my understanding of this is you're saying that by removing this code, we would not be able to give some wikis a help panel without search, while giving other wikis help panel with search. If that's right, then this is fine with me.
Yep that's right. Moving over to code review then.