Remove missing statements in test_odl
Remove missing statements in test_odl

It mainly removes _fake_url_for() which is useless since get_endpoint()
is not called for identity.

Coverage for functest/tests/unit/odl/test_odl.py : 100%

Change-Id: I5809c5eac4021c44113e70379621ab311187c669
Signed-off-by: Cédric Ollivier <d48310251a4a484d041bc5d09a9ac4d86d20f793@orange.com>

opnfv/functest,mywulin/functest,opnfv/functest,mywulin/functest