Update trivial components to use auto comp states (#20539)

Content.Shared/Mech/Components/MechPilotComponent.cs

@@ -1,5 +1,4 @@
 using Robust.Shared.GameStates;
-using Robust.Shared.Serialization;
 
 namespace Content.Shared.Mech.Components;
 
@@ -9,18 +8,12 @@ namespace Content.Shared.Mech.Components;
 /// <remarks>
 /// Get in the robot, Shinji
 /// </remarks>
-[RegisterComponent, NetworkedComponent]
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
 public sealed partial class MechPilotComponent : Component
 {
     /// <summary>
     /// The mech being piloted
     /// </summary>
-    [ViewVariables(VVAccess.ReadWrite)]
+    [ViewVariables(VVAccess.ReadWrite), AutoNetworkedField]
     public EntityUid Mech;
 }
-
-[Serializable, NetSerializable]
-public sealed class MechPilotComponentState : ComponentState
-{
-    public NetEntity Mech;
-}