Correct the return of "keystone service-create"

In keystone-service documentation, the return of "keystone service-create"
is missing "enabled" field, this change fix it.
Additionally, this change fix some aligning error of this
documentation, and redundant return of "keystone service-delete"

Change-Id: I5b17fea3e322483310ec5d07b755d80fc25759ce
Closes-Bug: #1341184
Merge "Correct the return of "keystone service-create""