[Approved] Plasma 6 proposal: delete some of the Task Switchers from kdeplasma-addons

Grid (Thumbnail Grid is better and doesn't take up the entire screen)
Informative (it's the same as Compact but with less space efficiency)
Thumbnails (it scrolls horizontally after only 5 or 6 windows, which is really awkward and unpleasant; same issue as the "Breeze" sidebar style switcher)
Small Icons (tiny icons are very hard to see and window title text is always elided into uselessness)
Text Only (it's like Compact but worse without icons, since this loses visual scanability)