To uninstall plasma-widget-folderview just follow these instructions.
sudo apt-get remove plasma-widget-folderview
This will remove just the plasma-widget-folderview package itself.
sudo apt-get remove --auto-remove plasma-widget-folderview
This will remove the plasma-widget-folderview package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for plasma-widget-folderview then this will work.
sudo apt-get purge plasma-widget-folderview
Or similarly, like this plasma-widget-folderview
sudo apt-get purge --auto-remove plasma-widget-folderview
|Maintainer||Kubuntu Developers <[email protected]>|
|Description||plasma widget showing the content of a folder displaying and managing contents of any KDE supported location. It can be used as a replacement for the traditional "desktop" folder concept in the main Plasma shell, but it is a lot more flexible. Folder View is part of the initial default KDE 4 desktop configuration.|