Reduced Warning Count By 130 For Full Rebuilds (#26518)

* remove deprecated entity coordinate extension functions. Reduces warning count by approximately 50

* final toCoords Removed

* Remove all unused variables and dead code paths

* remove always true variable, should be a cvar or something instead

* remove superfluous variables from tests

Content.Server/Singularity/EntitySystems/RadiationCollectorSystem.cs

@@ -24,7 +24,6 @@ public sealed class RadiationCollectorSystem : EntitySystem
     [Dependency] private readonly SharedAppearanceSystem _appearance = default!;
     [Dependency] private readonly SharedContainerSystem _containerSystem = default!;
     [Dependency] private readonly UseDelaySystem _useDelay = default!;
-    [Dependency] private readonly BatterySystem _batterySystem = default!;
 
     private const string GasTankContainer = "gas_tank";