There are some elements of WikiEditor that never really 'graduated'
from the alpha/beta phase.
In my opinion, these unmainted and hopefully unused pieces of code
should be removed.
https://gerrit.wikimedia.org/r/#/c/123645/
https://gerrit.wikimedia.org/r/#/c/123647/
https://gerrit.wikimedia.org/r/#/c/123648/
https://gerrit.wikimedia.org/r/#/c/123649/
DJ