fixes: Unnecessary re throw

src/Avalonia.Base/Data/Converters/MethodToCommandConverter.cs

@@ -140,18 +140,9 @@ namespace Avalonia.Data.Converters
                     );
 
             }
-            Action<object> action = null;
+            return Expression
-            try
+                .Lambda<Action<object>>(body, parameter)
-            {
+                .Compile();
-                action = Expression
-                   .Lambda<Action<object>>(body, parameter)
-                   .Compile();
-            }
-            catch (Exception ex)
-            {
-                throw ex;
-            }
-            return action;
         }
 
         static Func<object, bool> CreateCanExecute(object target