[enterprise-esim] Change confirmation message when deleting work profile

When a managed profile is deleted, eSIM subscriptions that are managed
by the profile are deleted as well, see http://ag/31951377.
Updating the confirmation message shown when deleting a work profile to
reflect that.

Screenshot: http://screen/6wXDErv9iALJBjz
Bug: 347925470
Flag: android.app.admin.flags.remove_managed_esim_on_work_profile_deletion
Test: provision a work profile and try to delete it
Change-Id: I6460f277285e2a022796c6a1212e1460007754ef