Update SilentOps.cs

`Optimize.DisableChat();` was used twice, looks like the `else` statement should be using `Optimize.EnableChat();`

Optimizer/SilentOps.cs

@@ -649,7 +649,7 @@ namespace Optimizer
                 }
                 else
                 {
-                    Optimize.DisableChat();
+                    Optimize.EnableChat();
                 }
             }