display migration: restore destination state
display migration: restore destination state

Restoring display channel from migration data.
Not notifying client about changes that are artifacts of loading the vm.
Remove legacy migration code.

Fantu/spice,SPICE/spice,alon/spice-server,elmarco/spice,freedesktop-unofficial-mirror/spice__spice,mathslinux/spice,ya-mouse/spice,alon/spice-server,alon/spice-server,alon/spice-server,alon/spice-server,Fantu/spice,ya-mouse/spice,freedesktop-unofficial-mirror/spice__spice,freedesktop-unofficial-mirror/spice__spice,freedesktop-unofficial-mirror/spice__spice,freedesktop-unofficial-mirror/spice__spice,mathslinux/spice,fgouget/spice,mathslinux/spice,elmarco/spice,SPICE/spice,ya-mouse/spice,Fantu/spice,elmarco/spice,fgouget/spice,fgouget/spice,elmarco/spice,mathslinux/spice,elmarco/spice,Fantu/spice,fgouget/spice,mathslinux/spice,SPICE/spice