unnecessary_override (#9540)

packages/flutter_driver/lib/src/find.dart

@@ -210,9 +210,6 @@ class GetText extends CommandWithTarget {
 
   /// Deserializes the command from JSON generated by [serialize].
   GetText.deserialize(Map<String, dynamic> json) : super.deserialize(json);
-
-  @override
-  Map<String, String> serialize() => super.serialize();
 }
 
 /// The result of the [GetText] command.

packages/flutter_driver/lib/src/gesture.dart

@@ -15,9 +15,6 @@ class Tap extends CommandWithTarget {
 
   /// Deserializes this command from JSON generated by [serialize].
   Tap.deserialize(Map<String, String> json) : super.deserialize(json);
-
-  @override
-  Map<String, String> serialize() => super.serialize();
 }
 
 /// The result of a [Tap] command.