Revert "Update submodule to 172.0.0 (#21222)" (#21225)

Content.Client/Mind/MindSystem.cs

@@ -4,24 +4,4 @@ namespace Content.Client.Mind;
 
 public sealed class MindSystem : SharedMindSystem
 {
-    public override void Initialize()
-    {
-        base.Initialize();
-        SubscribeLocalEvent<MindComponent, AfterAutoHandleStateEvent>(OnHandleState);
-    }
-
-    private void OnHandleState(EntityUid uid, MindComponent component, ref AfterAutoHandleStateEvent args)
-    {
-        // Because minds are generally not networked, there might be weird situations were a client thinks multiple
-        // users share a mind? E.g., if an admin periodical gets sent all minds via some PVS override, but doesn't get
-        // sent intermediate states? Not sure if this is actually possible, but better to be safe.
-        foreach (var (user, mind) in UserMinds)
-        {
-            if (mind == uid)
-                UserMinds.Remove(user);
-        }
-
-        if (component.UserId != null)
-            UserMinds[component.UserId.Value] = uid;
-    }
 }