<fix>[vm_local_volume_cache]: Set CacheTO in extension point

Enable cache for an in-use volume omits some command fields
sent to the agent.

VmLocalVolumeCacheManagerImpl implements the convertVolumeIfNeed
method of KVMConvertVolumeExtensionPoint. CacheTO should be set
in the implementation of this extension point.

Resolves: ZSTAC-83649

Change-Id: I69757864676978787767736a6f777a7562636b75

Author: haidong.pang

plugin/kvm/src/main/java/org/zstack/kvm/VolumeTO.java

@@ -158,15 +158,6 @@ public static VolumeTO valueOf(VolumeInventory vol, KVMHostInventory host, Strin
         for (KVMConvertVolumeExtensionPoint ext : exts) {
             to = ext.convertVolumeIfNeed(host, vol, to);
         }
-        VmLocalVolumeCacheVO cacheVO = Q.New(VmLocalVolumeCacheVO.class)
-                .eq(VmLocalVolumeCacheVO_.volumeUuid, vol.getUuid())
-                .find();
-        if (cacheVO == null) {
-            return to;
-        }
-        VmLocalVolumeCacheInventory cacheInv = VmLocalVolumeCacheInventory.valueOf(cacheVO);
-        CacheTO cacheTO = CacheTO.valueOf(cacheInv);
-        to.setCache(cacheTO);
         return  to;
     }