Time off feature for one user needs to be disabled without disabling the time and attendance license for the user.
There are two methods to achieve this:
Uncheck all the time off policies for the user in the time off tab under the users profile.
Create a new permission for the user based on one of the permission he is already associated with.
Then uncheck the time off option in the newly created permission and assign the new permission to the user.
Make sure to disable the old permission which was kept as a base for creating the new permission.