Remove stale dependency on model-flow-management artifact

- model-flow-management has been removed from controller, hence it
should no longer be used given is available only in -SNAPSHOT form
- Reupload to retrigger the jenkins

Change-Id: I4f733e5575a9aafea424bab519fb09290a575ae7
Signed-off-by: Giovanni Meo <gmeo@cisco.com>