From 2c8b3d457d903d1f3ab98311d9d5371e5a5c0ecd Mon Sep 17 00:00:00 2001
From: Ivan Kolodyazhny <e0ne@e0ne.info>
Date: Fri, 15 Sep 2017 10:34:41 -0600
Subject: [PATCH] Remove deprecated VD base classes which are not used now

Change-Id: I171022c0af01f4216c30630be7487f6f53d5fbca
---
 cinder/volume/driver.py      | 25 -------------------------
 cinder/volume/drivers/nfs.py |  3 +--
 2 files changed, 1 insertion(+), 27 deletions(-)

diff --git a/cinder/volume/driver.py b/cinder/volume/driver.py
index ff1aa073a51..64ce03513e3 100644
--- a/cinder/volume/driver.py
+++ b/cinder/volume/driver.py
@@ -1845,21 +1845,6 @@ class BaseVD(object):
         pass
 
 
-class LocalVD(object):
-    """This class has been deprecated and should not be inherited."""
-    pass
-
-
-class SnapshotVD(object):
-    """This class has been deprecated and should not be inherited."""
-    pass
-
-
-class ConsistencyGroupVD(object):
-    """This class has been deprecated and should not be inherited."""
-    pass
-
-
 @six.add_metaclass(abc.ABCMeta)
 class CloneableImageVD(object):
     @abc.abstractmethod
@@ -1908,16 +1893,6 @@ class MigrateVD(object):
         return (False, None)
 
 
-class ExtendVD(object):
-    """This class has been deprecated and should not be inherited."""
-    pass
-
-
-class TransferVD(object):
-    """This class has been deprecated and should not be inherited."""
-    pass
-
-
 @six.add_metaclass(abc.ABCMeta)
 class ManageableVD(object):
     @abc.abstractmethod
diff --git a/cinder/volume/drivers/nfs.py b/cinder/volume/drivers/nfs.py
index 8044a9e29cb..d7e9d576e00 100644
--- a/cinder/volume/drivers/nfs.py
+++ b/cinder/volume/drivers/nfs.py
@@ -32,7 +32,6 @@ from cinder.image import image_utils
 from cinder import interface
 from cinder import utils
 from cinder.volume import configuration
-from cinder.volume import driver
 from cinder.volume.drivers import remotefs
 
 VERSION = '1.4.0'
@@ -76,7 +75,7 @@ CONF.register_opts(nfs_opts, group=configuration.SHARED_CONF_GROUP)
 
 
 @interface.volumedriver
-class NfsDriver(remotefs.RemoteFSSnapDriverDistributed, driver.ExtendVD):
+class NfsDriver(remotefs.RemoteFSSnapDriverDistributed):
     """NFS based cinder driver.
 
     Creates file on NFS share for using it as block device on hypervisor.