Remove link to kazoo eventlet handler
Remove link to kazoo eventlet handler

This special pypi package and link is no longer
needed since kazoo itself has a in-tree supported
eventlet handler that can now be used instead.

Change-Id: I8587e22bfc13c9c5d76971cd5ff94c0cf93b6d93

openstack/taskflow,openstack/taskflow,pombredanne/taskflow-1,jimbobhickville/taskflow,pombredanne/taskflow-1,jimbobhickville/taskflow,junneyang/taskflow,junneyang/taskflow