RBD: remove redundant exception log to reduce noise
If RBDVolumeProxy fails to open the underlying image it reraises the
exception, so there is no need to log it unconditionally.  The caller
can gracefully handle this case without alarming the admin.
@@ -147,7 +147,6 @@ class RBDVolumeProxy(object):
read_only=read_only)
self.volume = tpool.Proxy(self.volume)
except driver.rbd.Error:
- LOG.exception("error opening rbd image %s", name)
if self._close_conn:
driver._disconnect_from_rados(rados_client, rados_ioctx)
raise
