Board Thread:Support Requests - Community Management/@comment-412821-20161126005318/@comment-17725354-20161126170258

Even though this would be theoretically possible through JavaScript, don't go that route. You'd be breaking the Terms of Use and might get globally blocked since customizations that remove functionality are prohibited.

See also: Help:Customization Policy.

As Andrewds1021 said above, you should ask staff if such a feature exists through Special:Contact/general.