Currently L7Policies cannot be updated( it was missing
in implementation in neutronclient). The same has been
taken care in the current patch.
Also, currently quota doesnt support updating the members
in an LBaaS pool. This patch temporarily removes it, till
it is not confirmed that LBaaS v2 needs to support quotas
for members or not.
Change-Id: I25a54a57debb762a32a280ece8c081fc52365f0f
Closes-Bug: #1624097