removed optimised storage option

restore should be possible everywhere

lxc_backup.sh

@@ -24,7 +24,7 @@ fi
 for container in $(${lxccmd} list --format csv -c n | grep  "1$");
 do 
 	${lxccmd} stop ${container}
-	${lxccmd} export ${container} ${backuppath}$(date +%Y_%m_%d)-lxc-${container}.tar.gz --instance-only --optimized-storage
+	${lxccmd} export ${container} ${backuppath}$(date +%Y_%m_%d)-lxc-${container}.tar.gz --instance-only
 	${lxccmd} start ${container}
 done