clean gnpy tox profile and OpenRoadmTopology22

clean gnpy tox profile and OpenRoadmTopology22

fix gnpy tox profile:
- olm/src/main/java/org/opendaylight/transportpce/olm/util/OlmUtils.java
  does not need to be patched when only the gnpy profile is called.
- the gnpy container must be killed after tests to avoid potential
  problems with others tests to run.

clean networkmodel/[..]/util/OpenRoadmTopology22.java from superflous
call to builders.

Signed-off-by: guillaume.lambert <guillaume.lambert@orange.com>
Change-Id: I51774cd0aaf16f0604a35993e2e9711930539bc7