Overriding methods should do more than simply call the same method in the super class.

See #30799.


git-svn-id: https://develop.svn.wordpress.org/trunk@31101 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/class-wp-customize-control.php

@@ -934,10 +934,6 @@ class WP_Customize_Header_Image_Control extends WP_Customize_Image_Control {
 
 	}
 
-	public function to_json() {
-		parent::to_json();
-	}
-
 	public function enqueue() {
 		wp_enqueue_media();
 		wp_enqueue_script( 'customize-views' );