Anti-anomaly fixes (#24634)

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

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