Fix 3000 errors

Content.Server/Projectiles/Components/ProjectileComponent.cs

@@ -1,9 +1,7 @@
-using System.Collections.Generic;
 using Content.Shared.Damage;
 using Content.Shared.Projectiles;
 using Content.Shared.Sound;
 using Robust.Shared.GameObjects;
-using Robust.Shared.Players;
 using Robust.Shared.Serialization.Manager.Attributes;
 using Robust.Shared.ViewVariables;
 
@@ -32,7 +30,7 @@ namespace Content.Server.Projectiles.Components
         /// Function that makes the collision of this object ignore a specific entity so we don't collide with ourselves
         /// </summary>
         /// <param name="shooter"></param>
-        public void IgnoreEntity(IEntity shooter)
+        public void IgnoreEntity(EntityUid shooter)
         {
             Shooter = shooter;
             Dirty();