Use http_check plugin

This change uses the http_check plugin instead of the
check_local_endpoint plugin because the latter generates metrics named
'openstack_check_local_api' which isn't correct for OpenContrail
services.

Change-Id: I34e07e8a692ce472a7a5493e17b25ca644da3104
Depends-On: I9f5a9e2a59c9eb3e377eba05638a3b83db90dbcb
3 files changed