Remove dothill driver options

The dothill driver has been marked unsupported for some time
now and has been disabled as a standalone driver.  Since the
driver can no longer be used it doesn't make sense to keep
the dothill_* options in the code.

The drivers that use the dothill driver use lenovo_ and hpmsa_
named options instead.

This patch removes the unused options.

Change-Id: I96afd3d7ecde564d8e79f325d3713e52d8529921

cinder/opts.py

@@ -97,8 +97,6 @@ from cinder.volume.drivers.dell_emc import xtremio as \
     cinder_volume_drivers_dell_emc_xtremio
 from cinder.volume.drivers.disco import disco as \
     cinder_volume_drivers_disco_disco
-from cinder.volume.drivers.dothill import dothill_common as \
-    cinder_volume_drivers_dothill_dothillcommon
 from cinder.volume.drivers import drbdmanagedrv as \
     cinder_volume_drivers_drbdmanagedrv
 from cinder.volume.drivers.falconstor import fss_common as \
@@ -317,8 +315,6 @@ def list_opts():
                 cinder_volume_drivers_dell_emc_vnx_common.VNX_OPTS,
                 cinder_volume_drivers_dell_emc_xtremio.XTREMIO_OPTS,
                 cinder_volume_drivers_disco_disco.disco_opts,
-                cinder_volume_drivers_dothill_dothillcommon.common_opts,
-                cinder_volume_drivers_dothill_dothillcommon.iscsi_opts,
                 cinder_volume_drivers_drbdmanagedrv.drbd_opts,
                 cinder_volume_drivers_falconstor_fsscommon.FSS_OPTS,
                 cinder_volume_drivers_fujitsu_eternusdxcommon.

cinder/volume/drivers/dothill/dothill_common.py

@@ -28,39 +28,11 @@ from oslo_log import log as logging
 from cinder import exception
 from cinder.i18n import _
 from cinder.objects import fields
-from cinder.volume import configuration
 from cinder.volume.drivers.dothill import dothill_client as dothill
 
 LOG = logging.getLogger(__name__)
 
-common_opts = [
-    cfg.StrOpt('dothill_backend_name',
-               default='A',
-               help="Pool or Vdisk name to use for volume creation."),
-    cfg.StrOpt('dothill_backend_type',
-               choices=['linear', 'virtual'],
-               default='virtual',
-               help="linear (for Vdisk) or virtual (for Pool)."),
-    cfg.StrOpt('dothill_api_protocol',
-               choices=['http', 'https'],
-               default='https',
-               help="DotHill API interface protocol."),
-    cfg.BoolOpt('dothill_verify_certificate',
-                default=False,
-                help="Whether to verify DotHill array SSL certificate."),
-    cfg.StrOpt('dothill_verify_certificate_path',
-               help="DotHill array SSL certificate path."),
-]
-
-iscsi_opts = [
-    cfg.ListOpt('dothill_iscsi_ips',
-                default=[],
-                help="List of comma-separated target iSCSI IP addresses."),
-]
-
 CONF = cfg.CONF
-CONF.register_opts(common_opts, group=configuration.SHARED_CONF_GROUP)
-CONF.register_opts(iscsi_opts, group=configuration.SHARED_CONF_GROUP)
 
 
 class DotHillCommon(object):