C# 9 Cleanup (#325)

- [X] Removes EventArgs - not needed
- [X] Merges sequential checks
- [X] Removes redundant type declarations

Projects/UOContent/Engines/ConPVP/TournamentPyramid.cs

@@ -209,7 +209,7 @@ namespace Server.Engines.ConPVP
 
     public class PyramidLevel
     {
-        public List<TourneyMatch> Matches { get; set; } = new List<TourneyMatch>();
+        public List<TourneyMatch> Matches { get; set; } = new();
         public TourneyParticipant FreeAdvance { get; set; }
     }
 }