diff --git src/wp-admin/includes/admin-filters.php src/wp-admin/includes/admin-filters.php
index d03881c8ac..078eca0093 100644
--- src/wp-admin/includes/admin-filters.php
+++ src/wp-admin/includes/admin-filters.php
@@ -31,8 +31,6 @@ add_filter( 'async_upload_audio', 'get_media_item', 10, 2 );
 add_filter( 'async_upload_video', 'get_media_item', 10, 2 );
 add_filter( 'async_upload_file', 'get_media_item', 10, 2 );
 
-add_filter( 'attachment_fields_to_save', 'image_attachment_fields_to_save', 10, 2 );
-
 add_filter( 'media_upload_gallery', 'media_upload_gallery' );
 add_filter( 'media_upload_library', 'media_upload_library' );
 
diff --git src/wp-admin/includes/media.php src/wp-admin/includes/media.php
index b015836a8b..4880f0ba72 100644
--- src/wp-admin/includes/media.php
+++ src/wp-admin/includes/media.php
@@ -1321,31 +1321,6 @@ function media_post_single_attachment_fields_to_edit( $form_fields, $post ) {
 	return $form_fields;
 }
 
-/**
- * Filters input from media_upload_form_handler() and assigns a default
- * post_title from the file name if none supplied.
- *
- * Illustrates the use of the {@see 'attachment_fields_to_save'} filter
- * which can be used to add default values to any field before saving to DB.
- *
- * @since 2.5.0
- *
- * @param array $post       The WP_Post attachment object converted to an array.
- * @param array $attachment An array of attachment metadata.
- * @return array Filtered attachment post object.
- */
-function image_attachment_fields_to_save( $post, $attachment ) {
-	if ( 'image' === substr( $post['post_mime_type'], 0, 5 ) ) {
-		if ( strlen( trim( $post['post_title'] ) ) == 0 ) {
-			$attachment_url                           = ( isset( $post['attachment_url'] ) ) ? $post['attachment_url'] : $post['guid'];
-			$post['post_title']                       = preg_replace( '/\.\w+$/', '', wp_basename( $attachment_url ) );
-			$post['errors']['post_title']['errors'][] = __( 'Empty Title filled from filename.' );
-		}
-	}
-
-	return $post;
-}
-
 /**
  * Retrieves the media element HTML to send to the editor.
  *