Unrevert audio (#21330)

Co-authored-by: Pieter-Jan Briers <pieterjan.briers@gmail.com>

Content.Client/Disposal/Systems/DisposalUnitSystem.cs

@@ -6,6 +6,8 @@ using Content.Shared.Emag.Systems;
 using Robust.Client.GameObjects;
 using Robust.Client.Animations;
 using Robust.Client.Graphics;
+using Robust.Shared.Audio;
+using Robust.Shared.Audio.Systems;
 using Robust.Shared.GameStates;
 using Robust.Shared.Physics.Events;
 using static Content.Shared.Disposal.Components.SharedDisposalUnitComponent;