Removing kipi from KDE Gear

[Albert Astals Cid]

My complaint about the removal of kipi support in gwenview and spectable was 
mostly ignored, so i guess that after two years it's time to remove them from 
KDE Gear.

I will merge https://invent.kde.org/sysadmin/release-tools/-/merge_requests/52 
next week unless someone strongly disagrees.

I'm very disappointed on how we removed features from users just because their 
UI looked slightly ugly.

Saddest of regards,
  Albert