delete works...

DiscoBot/gsmeet/GSMeet.cs

@@ -176,23 +176,25 @@ namespace DiscoBot.gsmeet
 
         private Task CleanupNotifyDB(GSMeetSheetData sheetData)
         {
-            /*
+            for(var i=sheetData.Sheet.NotifiedEvents.Count-1;i>=0;i--)
-            foreach(var n in sheetData.Sheet.NotifiedEvents)
             {
+                var n = sheetData.Sheet.NotifiedEvents[i];
                 if(DateTimeOffset.UtcNow > n.Date)
                 {
                     sheetData.Sheet.NotifiedEvents.Remove(n);
+                    gsmeetContext.Entry(n).State = EntityState.Deleted;
                 }
             }
-            foreach (var n in sheetData.Sheet.NotifiedUsers)
+            for (var i = sheetData.Sheet.NotifiedUsers.Count - 1; i >= 0; i--)
             {
+                var n = sheetData.Sheet.NotifiedUsers[i];
                 if (DateTimeOffset.UtcNow > n.Date)
                 {
                     sheetData.Sheet.NotifiedUsers.Remove(n);
+                    gsmeetContext.Entry(n).State = EntityState.Deleted;
                 }
             }
             gsmeetContext.SaveChanges();
-            */
             return Task.CompletedTask;
         }