Remove unused dependencies (#19490)

Content.Client/Radiation/Systems/GeigerSystem.cs

@@ -11,9 +11,6 @@ namespace Content.Client.Radiation.Systems;
 
 public sealed class GeigerSystem : SharedGeigerSystem
 {
-    [Dependency] private readonly AudioSystem _audio = default!;
-    [Dependency] private readonly IPlayerManager _playerManager = default!;
-
     public override void Initialize()
     {
         base.Initialize();