Remove irrelevant counteroffer notifications when the trade request is invalid

core/src/com/unciv/logic/civilization/managers/TurnManager.kt

@@ -92,6 +92,8 @@ class TurnManager(val civInfo: Civilization) {
                 civInfo.tradeRequests.remove(tradeRequest)
                 // Yes, this is the right direction. I checked.
                 offeringCiv.addNotification("Our proposed trade is no longer relevant!", NotificationCategory.Trade, NotificationIcon.Trade)
+                // If it's a counteroffer, remove notification
+                civInfo.notifications.removeAll { it.text == "[${offeringCiv.civName}] has made a counteroffer to your trade request" }
             }
         }