Fix IDE0110

.editorconfig

@@ -375,7 +375,7 @@ dotnet_diagnostic.IDE0100.severity = warning
 
 # IDE0110 Remove unnecessary discard
 # No options
-dotnet_diagnostic.IDE0110.severity = silent # Requires C# 9 - TODO Consider enabling
+dotnet_diagnostic.IDE0110.severity = warning
 
 ### Miscellaneous Rules
 ### https://learn.microsoft.com/en-us/dotnet/fundamentals/code-analysis/style-rules/miscellaneous-rules

OpenRA.Game/Network/LocalizedMessage.cs

@@ -42,7 +42,7 @@ namespace OpenRA.Network
 		{
 			switch (value.ToFluentType())
 			{
-				case FluentNumber _:
+				case FluentNumber:
 					return FluentArgumentType.Number;
 				default:
 					return FluentArgumentType.String;