Remove FF wiki_floating_sidebar_toggle
What does this MR do and why?
With no feedback since the feature flag was enabled in prod for several weeks now, we can safely remove the FF. This MR does that.
References
closes #582773 (closed)
Screenshots or screen recordings
No visual changes
How to set up and validate locally
- Open or create a wiki
- verify the sidebar toggle floats
MR acceptance checklist
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Related to #582773 (closed)