def removeAction(self):
return self.__removeAction<EOL>
Defines the action that should be taken when a model is removed from the collection generated
by this reverse lookup.  The default action is 'unset', which will simply de-reference the source
model from the target.  If you set the action to 'delete', then the target model will be fully removed
from the database when being removed.

:return:  <str>