If you want to remove someone’s previously granted access to assume your identity, complete the following steps:
Step 1 - Click on Preferences, then click User.
Step 2 - Click on Assume Identity.
Step 3 - Select one or more users.
Step 4 - Click Delete.
A pop-up window will open to confirm you are sure you want to delete the shared identities.
Step 5 - Click Delete Item.
Step 6 - The user(s) are now removed from your list.