Don't use the Task object in the dictionary of results for include_role
Don't use the Task object in the dictionary of results for include_role

The short-circuiting of include_role in TaskExecutor was using the _task object
in the result dictionary. This causes the playbook class to be serialized, which
is something we no longer do due to speed/size problems with nested objects.

Simply removing this should fix a lot of memory and speed problems with include_role.

thaim/ansible,thaim/ansible