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/Polymorph/Systems/PolymorphSystem.cs

@@ -32,7 +32,6 @@ public sealed partial class PolymorphSystem : EntitySystem
     [Dependency] private readonly IPrototypeManager _proto = default!;
     [Dependency] private readonly IGameTiming _gameTiming = default!;
     [Dependency] private readonly ActionsSystem _actions = default!;
-    [Dependency] private readonly ActionContainerSystem _actionContainer = default!;
     [Dependency] private readonly AudioSystem _audio = default!;
     [Dependency] private readonly SharedBuckleSystem _buckle = default!;
     [Dependency] private readonly ContainerSystem _container = default!;