I found the need to remove a Share form some old dockers that were auto set up. The problem is UnRaid will not let you remove a non-empty share. Bummer. The solution I found was to use the terminal that is listed with an icon in the top right >_
User shares are in the /mnt directory under /users. and to remove the directory all at once without deleting everything first use the following command
rm -rf /mnt/sharenameI hope this helps others as it has helped me. Finally able to clean up my server.