Shards damage barefoot users + steptrigger-related general cleanup (#9585)

Content.Server/LandMines/LandMineSystem.cs

@@ -1,6 +1,7 @@
 using Content.Server.Explosion.EntitySystems;
 using Content.Shared.Popups;
 using Content.Shared.StepTrigger;
+using Content.Shared.StepTrigger.Systems;
 using Robust.Shared.Player;
 
 namespace Content.Server.LandMines;
@@ -27,6 +28,8 @@ public sealed class LandMineSystem : EntitySystem
 
     private void HandleTriggered(EntityUid uid, LandMineComponent component, ref StepTriggeredEvent args)
     {
+        // This doesn't use TriggerOnStepTrigger since we don't want to display the popup if nothing happens
+        // and I didn't feel like making an `AfterTrigger` event
         if (_trigger.Trigger(uid, args.Tripper))
         {
             _popupSystem.PopupCoordinates(
@@ -35,9 +38,6 @@ public sealed class LandMineSystem : EntitySystem
                 Filter.Entities(args.Tripper),
                 PopupType.LargeCaution);
         }
-
-        if (component.DeleteOnActivate)
-            QueueDel(uid);
     }
 }