Fire extinguisher/spray refactor (#6314)

Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Shared/Extinguisher/SharedFireExtinguisherComponent.cs

@@ -1,14 +1,8 @@
 using System;
-using Robust.Shared.GameObjects;
 using Robust.Shared.Serialization;
 
 namespace Content.Shared.Extinguisher
 {
-    public abstract class SharedFireExtinguisherComponent : Component
-    {
-        public override string Name => "FireExtinguisher";
-    }
-
     [Serializable, NetSerializable]
     public enum FireExtinguisherVisuals : byte
     {