manual revert of jpa dependency on brmsgw

The review https://gerrit.onap.org/r/c/policy/engine/+/105439
introduced an additional dependency that did not solve the
underlying issue per testing.   Reverting back the change,
as other repos seem to be working without needing it.

Issue-ID: POLICY-2471
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>
Change-Id: Ibb2318e768b8fbb0fc4107757b80ca18cc89dcfb