The steps outlined below detail how to deprovision a service account for Google Drive.
Go to My Account > Sign-in & security > Connected apps & sites > MANAGE APPS.
Click the application named Trend Micro Cloud App Security, and then click REMOVE.
Temporary folder: trendmicro_cas_temp__dont_change_or_delete
Unshare the temporary folder and make the folder unavailable to others before removing it.
Quarantine folder: trendmicro_cas_quarantine__dont_change_or_delete
Back up the existing quarantined files if necessary.