Revert biome rework (#38724)

* Revert "Fix world generation (#38713)"

This reverts commit 10fa6ff4af.

* Revert "Biome rework (#37735)"

This reverts commit fe7b96147c.

Content.Shared/Procedural/DungeonGenerators/ExteriorDunGen.cs

@@ -10,10 +10,4 @@ public sealed partial class ExteriorDunGen : IDunGenLayer
 {
     [DataField(required: true)]
     public ProtoId<DungeonConfigPrototype> Proto;
-
-    /// <summary>
-    /// Minimum and maximum penetration.
-    /// </summary>
-    [DataField]
-    public Vector2i Penetration = new Vector2i(5, 15);
 }