Remove transportpce-routing-constraint model

Remove transportpce-routing-constraint model

- replace internal redundant transportpce-routing-constraints model by
the official openroadm-routing-constraints one
- remove unecessary mapping class in servicehandler that was converting
routing-constraints from openroadm to transportpce types
- adapt other code, UT and functional tests consequently

NB: This change is the following of change
https://git.opendaylight.org/gerrit/c/transportpce/+/99379, and they
should be cherry-picked together to guarantee YANG revision dates
coherency.

JIRA: TRNSPRTPCE-586
Signed-off-by: Gilles Thouenon <gilles.thouenon@orange.com>
Change-Id: Ieee313f5700bce4924a8e75dea52d59f7f494bc5