Anti-anomaly fixes (#24634)

- Remove unnecessary mapcoordinates get.
- Remove mapping markers as everything should be ingame entities and this is functioning as an area.

(cherry picked from commit 11c69bca3f370e3a3fde1bc24976fd1188aebb30)

Content.Server/Anomaly/AnomalySystem.Generator.cs

@@ -119,6 +119,8 @@ public sealed partial class AnomalySystem
             // don't spawn inside of solid objects
             var physQuery = GetEntityQuery<PhysicsComponent>();
             var valid = true;
+
+            // TODO: This should be using static lookup.
             foreach (var ent in gridComp.GetAnchoredEntities(tile))
             {
                 if (!physQuery.TryGetComponent(ent, out var body))
@@ -143,9 +145,9 @@ public sealed partial class AnomalySystem
                 if (antiXform.MapID != mapPos.MapId)
                     continue;
 
-                var antiCoordinates = _transform.GetMapCoordinates(antiXform);
+                var antiCoordinates = _transform.GetWorldPosition(antiXform);
 
-                var delta = antiCoordinates.Position - mapPos.Position;
+                var delta = antiCoordinates - mapPos.Position;
                 if (delta.LengthSquared() < zone.ZoneRadius * zone.ZoneRadius)
                 {
                     valid = false;

Resources/Prototypes/Entities/Markers/anti_anomaly_zone.yml

@@ -1,33 +0,0 @@
-- type: entity
-  name: anti anomaly zone
-  description: Anomalies will not be able to appear within a 10 block radius of this point.
-  id: AntiAnomalyZone
-  suffix: "range 10"
-  parent: MarkerBase
-  components:
-  - type: Sprite
-    sprite: Structures/Specific/Anomalies/ice_anom.rsi
-    layers:
-      - state: anom
-      - sprite: Markers/cross.rsi
-        state: pink
-  - type: AntiAnomalyZone
-    zoneRadius: 10
-
-- type: entity
-  parent: AntiAnomalyZone
-  id: AntiAnomalyZone20
-  suffix: "range 20"
-  description: Anomalies will not be able to appear within a 20 block radius of this point.
-  components:
-  - type: AntiAnomalyZone
-    zoneRadius: 20
-    
-- type: entity
-  parent: AntiAnomalyZone
-  id: AntiAnomalyZone50
-  suffix: "range 50"
-  description: Anomalies will not be able to appear within a 50 block radius of this point.
-  components:
-  - type: AntiAnomalyZone
-    zoneRadius: 50