Remove deprecated devops API. Skipped one behave test that still used
it. Will open separate issue to deal with that. Update API docs.

Fixes FAB-258

rebased

Change-Id: Iba55fb271aca5a1d1d8e895ecc6ff34c69f59ac2
Signed-off-by: Christopher Ferris <chrisfer@us.ibm.com>