storage: do not clear vols before volume upload
storage: do not clear vols before volume upload

Commit 5e54361c added virStoragePoolObjClearVols before refreshPool
to prevent duplicate volume entries.

However it is not needed here because we're not refreshing the pool yet,
just checking for the existence of the refresh callback.

The actual refresh is done via virStorageVolFDStreamCloseCb
in virStorageVolPoolRefreshThread, which already calls
virStoragePoolObjClearVols.

jfehlig/libvirt,datto/libvirt,jardasgit/libvirt,jfehlig/libvirt,eskultety/libvirt,crobinso/libvirt,zippy2/libvirt,nertpinx/libvirt,eskultety/libvirt,taget/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,datto/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,datto/libvirt,nertpinx/libvirt,olafhering/libvirt,VenkatDatta/libvirt,taget/libvirt,libvirt/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,libvirt/libvirt,fabianfreyer/libvirt,taget/libvirt,jardasgit/libvirt,VenkatDatta/libvirt,crobinso/libvirt,jfehlig/libvirt,eskultety/libvirt,zippy2/libvirt,datto/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,datto/libvirt,olafhering/libvirt,jardasgit/libvirt,zippy2/libvirt,zippy2/libvirt,nertpinx/libvirt,olafhering/libvirt,taget/libvirt,nertpinx/libvirt,libvirt/libvirt,andreabolognani/libvirt,jardasgit/libvirt,libvirt/libvirt,andreabolognani/libvirt,olafhering/libvirt,andreabolognani/libvirt,taget/libvirt,eskultety/libvirt,crobinso/libvirt,eskultety/libvirt,crobinso/libvirt,andreabolognani/libvirt