software/theia: Fix standalone service script

Always format the partitions to ensure the slapformat configuration is
valid, because the constructor overwrites it with invalid values.

We need a valid configuration so that `slapos node format` works,
and we need `slapos node format` for the resiliency import script.

software/theia/software.cfg

@@ -123,14 +123,10 @@ initialization =
   standalone.start()
   try:
     partition_count = 20
-    if len(glob.glob(os.path.join(standalone.instance_directory, '*'))) < partition_count:
-      print("Standalone SlapOS: Formatting {partition_count} partitions".format(
-          partition_count=partition_count))
-      standalone.format(
-          partition_count,
-          args.ipv4,
-          args.ipv6,
-      )
+    print("Standalone SlapOS: Formatting {partition_count} partitions".format(
+        partition_count=partition_count))
+    standalone.format(partition_count, args.ipv4, args.ipv6)
+
     print("Standalone SlapOS for computer `{}` started".format(args.computer_id))
     # Run instance at least once, to start the supervisor managing instances.
     try: