Remove IInteractUsing (#9718)

Content.Shared/Interaction/InteractUsing.cs

@@ -1,47 +1,9 @@
-using System.Threading.Tasks;
 using JetBrains.Annotations;
 using Robust.Shared.Map;
 using Robust.Shared.Utility;
 
 namespace Content.Shared.Interaction
 {
-    /// <summary>
-    /// This interface gives components behavior when their entity is clicked on by a user with an object in their hand
-    /// who is in range and has unobstructed reach of the target entity (allows inside blockers). This includes
-    /// clicking on an object in the world as well as clicking on an object in inventory.
-    /// </summary>
-    [RequiresExplicitImplementation]
-    public interface IInteractUsing
-    {
-        /// <summary>
-        /// The interaction priority. Higher numbers get called first.
-        /// </summary>
-        /// <value>Priority defaults to 0</value>
-        int Priority => 0;
-
-        /// <summary>
-        /// Called when using one object on another when user is in range of the target entity.
-        /// </summary>
-        [Obsolete("Use InteractUsingMessage instead")]
-        Task<bool> InteractUsing(InteractUsingEventArgs eventArgs);
-    }
-
-    public sealed class InteractUsingEventArgs : EventArgs, ITargetedInteractEventArgs
-    {
-        public InteractUsingEventArgs(EntityUid user, EntityCoordinates clickLocation, EntityUid @using, EntityUid target)
-        {
-            User = user;
-            ClickLocation = clickLocation;
-            Using = @using;
-            Target = target;
-        }
-
-        public EntityUid User { get; }
-        public EntityCoordinates ClickLocation { get; }
-        public EntityUid Using { get; }
-        public EntityUid Target { get; }
-    }
-
     /// <summary>
     ///     Raised when a target entity is interacted with by a user while holding an object in their hand.
     /// </summary>

Content.Shared/Interaction/SharedInteractionSystem.cs

@@ -623,16 +623,6 @@ namespace Content.Shared.Interaction
             if (interactUsingEvent.Handled)
                 return;
 
-            var interactUsingEventArgs = new InteractUsingEventArgs(user, clickLocation, used, target);
-            var interactUsings = AllComps<IInteractUsing>(target).OrderByDescending(x => x.Priority);
-
-            foreach (var interactUsing in interactUsings)
-            {
-                // If an InteractUsing returns a status completion we finish our interaction
-                if (await interactUsing.InteractUsing(interactUsingEventArgs))
-                    return;
-            }
-
             InteractDoAfter(user, used, target, clickLocation, canReach: true);
         }