I have uninstall my webpartsolution using below given statement
Uninstall-SPSolution –Identity MySharePointSolution.wsp –WebApplication
I can see webpart custom folder and name in Categories gallery using IE visiting
http://myspwebapp in editing webpage insert webpart but with note
"The operation could not be completed because the item was removed from the gallery"
I can delet from Site Setting -WebPart Gallery.
How to remove this from Categories using power shell?
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