Delete PoolParty Taxonomy from Term Store
You can use the PoolParty for SharePoint Administration application to delete a synchronized term group from Term store when you no longer need it.
On the page site where PoolParty for SharePoint Administration has been installed, select Sync with Term store.
Select Manage synchronization.
Select Delete for the synchronization you want to remove from Term store.
A confirmation dialog opens.
Confirm with OK.
A success message appears.