node-proxy: drop local API

node-proxy: drop local API

This was intented to address the case where the Ceph
manager can't talk directly to the oob management tool because
of network restrictions (subnets not inter-connecter, etc.).

If for any reason the host is stuck or unreachable, that local API won't
be helpful anyway, as a result any actions the Ceph mgr would be asked
to perform on the node would fail.

Signed-off-by: Guillaume Abrioux <gabrioux@ibm.com>
(cherry picked from commit 3607a305cf629f54a8c3c3f52e56d41210c21d28)