In `wp-admin/users.php`, `break` is unreachabled after `exit`.

See #27882.

Built from https://develop.svn.wordpress.org/trunk@28315


git-svn-id: http://core.svn.wordpress.org/trunk@28143 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/users.php

@@ -137,8 +137,6 @@ case 'promote':
 	wp_redirect(add_query_arg('update', $update, $redirect));
 	exit();
 
-break;
-
 case 'dodelete':
 	if ( is_multisite() )
 		wp_die( __('User deletion is not allowed from this screen.') );
@@ -188,8 +186,6 @@ case 'dodelete':
 	wp_redirect($redirect);
 	exit();
 
-break;
-
 case 'delete':
 	if ( is_multisite() )
 		wp_die( __('User deletion is not allowed from this screen.') );
@@ -293,8 +289,6 @@ case 'doremove':
 	wp_redirect($redirect);
 	exit;
 
-break;
-
 case 'remove':
 
 	check_admin_referer('bulk-users');