Remove InteractedWithEvent and friends. (#11939)

Content.Shared/Interaction/Events/ContactInteractionEvent.cs

@@ -0,0 +1,17 @@
+namespace Content.Shared.Interaction.Events;
+
+/// <summary>
+///     Raised directed at two entities to indicate that they came into contact, usually as a result of some other interaction.
+/// </summary>
+/// <remarks>
+///     This is currently used by the forensics and disease systems to perform on-contact interactions.
+/// </remarks>
+public sealed class ContactInteractionEvent : HandledEntityEventArgs
+{
+    public readonly EntityUid Other;
+
+    public ContactInteractionEvent(EntityUid other)
+    {
+        Other = other;
+    }
+}