JS: in event callbacks replace the very outdated return false with preventDefault().

Props adamsilverstein.
Fixes #18590.
Built from https://develop.svn.wordpress.org/trunk@34977


git-svn-id: http://core.svn.wordpress.org/trunk@34942 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/edit-comments.js

@@ -284,13 +284,13 @@ setCommentsList = function() {
 			a.attr('class', 'vim-z vim-destructive');
 			$('.avatar', el).first().clone().prependTo('#undo-' + id + ' .' + action + '-undo-inside');
 
-			a.click(function(){
+			a.click(function( e ){
+				e.preventDefault();
 				list.wpList.del(this);
 				$('#undo-' + id).css( {backgroundColor:'#ceb'} ).fadeOut(350, function(){
 					$(this).remove();
 					$('#comment-' + id).css('backgroundColor', '').fadeIn(300, function(){ $(this).show(); });
 				});
-				return false;
 			});
 		}
 
@@ -854,7 +854,10 @@ $(document).ready(function(){
 
 	setCommentsList();
 	commentReply.init();
-	$(document).delegate('span.delete a.delete', 'click', function(){return false;});
+
+	$(document).on( 'click', 'span.delete a.delete', function( e ) {
+		e.preventDefault();
+	});
 
 	if ( typeof $.table_hotkeys != 'undefined' ) {
 		make_hotkeys_redirect = function(which) {