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/Decals/Commands/RemoveDecalCommand.cs

@@ -1,9 +1,7 @@
 using Content.Server.Administration;
 using Content.Shared.Administration;
 using Robust.Shared.Console;
-using Robust.Shared.Map;
 using Robust.Shared.Map.Components;
-using SQLitePCL;
 
 namespace Content.Server.Decals.Commands
 {
@@ -11,7 +9,6 @@ namespace Content.Server.Decals.Commands
     public sealed class RemoveDecalCommand : IConsoleCommand
     {
         [Dependency] private readonly IEntityManager _entManager = default!;
-        [Dependency] private readonly IMapManager _mapManager = default!;
 
         public string Command => "rmdecal";
         public string Description => "removes a decal";