Remove dup of LVMISCSIDriver in LVMISERDriver
Remove dup of LVMISCSIDriver in LVMISERDriver

LVMISERDriver is almost copy of LVMISCSIDriver.

Change-Id: I27f03ba19908184e96d05e7f17e581d906fc119a

j-griffith/cinder,bswartz/cinder,abusse/cinder,scality/cinder,leilihh/cinder,takeshineshiro/cinder,NeCTAR-RC/cinder,openstack/cinder,saeki-masaki/cinder,saeki-masaki/cinder,dims/cinder,JioCloud/cinder,hguemar/cinder,hguemar/cinder,Accelerite/cinder,duhzecca/cinder,github-borat/cinder,NetApp/cinder,nikesh-mahalka/cinder,Datera/cinder,tlakshman26/cinder-bug-fix-volume-conversion-full,abusse/cinder,apporc/cinder,tlakshman26/cinder-https-changes,mahak/cinder,Paul-Ezell/cinder-1,Nexenta/cinder,Akrog/cinder,nexusriot/cinder,winndows/cinder,NetApp/cinder,github-borat/cinder,Thingee/cinder,duhzecca/cinder,apporc/cinder,cloudbase/cinder,Hybrid-Cloud/cinder,alex8866/cinder,julianwang/cinder,redhat-openstack/cinder,redhat-openstack/cinder,winndows/cinder,CloudServer/cinder,nikesh-mahalka/cinder,phenoxim/cinder,manojhirway/ExistingImagesOnNFS,scality/cinder,rakeshmi/cinder,Accelerite/cinder,Akrog/cinder,Nexenta/cinder,Hybrid-Cloud/cinder,tlakshman26/cinder-bug-fix-volume-conversion-full,blueboxgroup/cinder,tlakshman26/cinder-new-branch,Thingee/cinder,NeCTAR-RC/cinder,manojhirway/ExistingImagesOnNFS,nexusriot/cinder,potsmaster/cinder,scottdangelo/RemoveVolumeMangerLocks,mahak/cinder,tlakshman26/cinder-new-branch,sasukeh/cinder,rakeshmi/cinder,CloudServer/cinder,bswartz/cinder,openstack/cinder,potsmaster/cinder,phenoxim/cinder,Paul-Ezell/cinder-1,petrutlucian94/cinder,eharney/cinder,Datera/cinder,julianwang/cinder,tlakshman26/cinder-https-changes,scottdangelo/RemoveVolumeMangerLocks,blueboxgroup/cinder,j-griffith/cinder,JioCloud/cinder,alex8866/cinder,leilihh/cinder,ge0rgi/cinder,takeshineshiro/cinder,Thingee/cinder,dims/cinder,petrutlucian94/cinder,eharney/cinder,sasukeh/cinder,spring-week-topos/cinder-week,cloudbase/cinder,spring-week-topos/cinder-week