migrate_volume_completion() function in Volume class was commented out when it was added. It hasn't been changed since then. This change remove it. Change-Id: Iad8c88e20268265f9063e2faa2a21514439150ad
migrate_volume_completion() function in Volume class was commented out when it was added. It hasn't been changed since then. This change remove it. Change-Id: Iad8c88e20268265f9063e2faa2a21514439150ad