User with change_xform ("Can edit") cannot delete submissions via API

[jnm]

A user with change_xform can delete a submission by POSTing id=1234 to http://kc.kobo.local:9000/super/forms/[id_string for form with PK of 1]/delete_data, but the same user receives {"detail":"You do not have permission to perform this action."} when attempting to DELETE http://kc.kobo.local:9000/api/v1/data/1/1234.

[jnm]

This call to get_object() ends up checking whether the user has logger.delete_xform, which they do not:

kobocat/onadata/apps/api/viewsets/data_viewset.py

Lines 573 to 574 in 97deab4

	def destroy(self, request, *args, **kwargs):
	self.object = self.get_object()