Revert biome rework (#38724)

* Revert "Fix world generation (#38713)"

This reverts commit 10fa6ff4af.

* Revert "Biome rework (#37735)"

This reverts commit fe7b96147c.

Content.Server/Shuttles/Systems/ShuttleSystem.cs

@@ -1,7 +1,6 @@
 using Content.Server.Administration.Logs;
 using Content.Server.Body.Systems;
 using Content.Server.Buckle.Systems;
-using Content.Server.Decals;
 using Content.Server.Parallax;
 using Content.Server.Procedural;
 using Content.Server.Shuttles.Components;
@@ -42,12 +41,10 @@ public sealed partial class ShuttleSystem : SharedShuttleSystem
     [Dependency] private readonly IMapManager _mapManager = default!;
     [Dependency] private readonly IPrototypeManager _protoManager = default!;
     [Dependency] private readonly IRobustRandom _random = default!;
-    [Dependency] private readonly ITileDefinitionManager _tileDefManager = default!;
     [Dependency] private readonly BiomeSystem _biomes = default!;
     [Dependency] private readonly BodySystem _bobby = default!;
     [Dependency] private readonly BuckleSystem _buckle = default!;
     [Dependency] private readonly DamageableSystem _damageSys = default!;
-    [Dependency] private readonly DecalSystem _decals = default!;
     [Dependency] private readonly DockingSystem _dockSystem = default!;
     [Dependency] private readonly DungeonSystem _dungeon = default!;
     [Dependency] private readonly EntityLookupSystem _lookup = default!;