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

(cherry picked from commit 59e46aab93)

Content.Server/ParticleAccelerator/EntitySystems/ParticleAcceleratorSystem.cs

@@ -2,7 +2,6 @@ using Content.Server.Administration.Logs;
 using Content.Server.Chat.Managers;
 using Content.Server.Projectiles;
 using Robust.Shared.Physics.Systems;
-using Robust.Shared.Map;
 using Robust.Shared.Timing;
 using Robust.Server.GameObjects;
 using Robust.Shared.Configuration;
@@ -13,7 +12,6 @@ public sealed partial class ParticleAcceleratorSystem : EntitySystem
 {
     [Dependency] private readonly IAdminLogManager _adminLogger = default!;
     [Dependency] private readonly IGameTiming _gameTiming = default!;
-    [Dependency] private readonly IMapManager _mapManager = default!;
     [Dependency] private readonly IConfigurationManager _cfg = default!;
     [Dependency] private readonly IChatManager _chat = default!;
     [Dependency] private readonly ProjectileSystem _projectileSystem = default!;