If you need to remove a delegate from Google Workspace (formerly G Suite) then please try the steps below:

1. On your computer, open Gmail. You can’t set up delegates from the Gmail app.
2. In the top right, click Settings .
3. Click See all Settings.
4. Click the Accounts and Import tab.
5. In the “Grant access to your account” section, click Delete next to the account you want to remove.