Removing a user from Landscape
You can delete a user by navigating to Settings > Users (you must be an Administrator to access Settings), hovering over their name and selecting the trash can in the horizontal popup menu.
If you delete a user, they will no longer have access to the account. The contact data and associated data will remain in place after the user is deleted. For example, you will not lose any information on past site visits that the person performed or communications that they entered.
You'll first be asked if you want to permanently delete the user. You can re-add them later if needed, but their user data will be lost. Choose 'Yes'.
You then have the option to Transfer Data from that user to another user. This option allows you to copy special views and dashboard widgets that have been shared and 'belong' to that user. Choose the user you would like to copy the data to (usually an administrator) and click 'OK'. If you don't need to copy anything, select 'Nobody'.