fix ci

Author: xiedeyantu

datafusion/optimizer/src/unions_to_filter.rs

@@ -383,10 +383,6 @@ mod tests {
     struct VolatileTestUdf;
 
     impl ScalarUDFImpl for VolatileTestUdf {
-        fn as_any(&self) -> &dyn std::any::Any {
-            self
-        }
-
         fn name(&self) -> &str {
             "volatile_test"
         }