diff -r cf61fcea0001 -r c7c34916027a wp/wp-content/themes/twentyfifteen/js/keyboard-image-navigation.js
--- a/wp/wp-content/themes/twentyfifteen/js/keyboard-image-navigation.js	Mon Oct 14 17:39:30 2019 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,22 +0,0 @@
-/**
- * Twenty Fifteen keyboard support for image navigation.
- */
-
-( function( $ ) {
-	$( document ).on( 'keydown.twentyfifteen', function( e ) {
-		var url = false;
-
-		// Left arrow key code.
-		if ( e.which === 37 ) {
-			url = $( '.nav-previous a' ).attr( 'href' );
-
-		// Right arrow key code.
-		} else if ( e.which === 39 ) {
-			url = $( '.nav-next a' ).attr( 'href' );
-		}
-
-		if ( url && ( ! $( 'textarea, input' ).is( ':focus' ) ) ) {
-			window.location = url;
-		}
-	} );
-} )( jQuery );