Expeditions rework (#18960)

Content.Server/Salvage/Expeditions/SalvageExpeditionComponent.cs

@@ -49,16 +49,4 @@ public sealed partial class SalvageExpeditionComponent : SharedSalvageExpedition
     {
         Params = AudioParams.Default.WithVolume(-5),
     };
-
-    /// <summary>
-    /// The difficulty this mission had or, in the future, was selected.
-    /// </summary>
-    [ViewVariables(VVAccess.ReadWrite), DataField("difficulty")]
-    public DifficultyRating Difficulty;
-
-    /// <summary>
-    /// List of items to order on mission completion
-    /// </summary>
-    [ViewVariables(VVAccess.ReadWrite), DataField("rewards", customTypeSerializer: typeof(PrototypeIdListSerializer<EntityPrototype>))]
-    public List<string> Rewards = default!;
 }