Entities must be dismounted before teleportation in order to avoid
multiple issues in the server with regards to teleportation, while
we now lose the ability for plugins to monitor this specific case
of entity dismount, the alternative is that we allow a cancellable
event, but silently ignore the cancelled status, which might cause
further issues for plugins tracking state
Given that nobody can be relying on the Cancellable state of those
events during teleportation due to the issues that arise from this,
this is a small trade off
