How to unassign class categories to the users?

How to unassign class categories to the users?

To unassign class categories to the users, follow the steps given below:

Step 1:
         Select the Concerns module and then select the Map Organization Users to
        Class Categories under the  Concerns menu.
          (Concerns--->Concerns--->Map Organization Users to Class Categories)

Step 2:
        Select the Location, Branch, User Type then click on Get. Against the respective
        User Name, select the class category and then click on the Delete icon given
        against that class category to unassign.