diff -urpN modules/filter/filter.module modules/filter/filter.module
--- modules/filter/filter.module	2008-09-21 13:01:24.843750000 +0300
+++ modules/filter/filter.module	2008-09-21 13:16:35.390625000 +0300
@@ -476,7 +476,7 @@ function filter_form($value = FILTER_FOR
 
   $extra = theme('filter_tips_more_info');
 
-  if (count($formats) > 1) {
+  if (count($formats)) {
     $form = array(
       '#type' => 'fieldset',
       '#title' => t('Input format'),
@@ -501,16 +501,6 @@ function filter_form($value = FILTER_FOR
       );
     }
   }
-  else {
-    // Only one format available: use a hidden form item and only show tips.
-    $format = array_shift($formats);
-    $form[$format->format] = array('#type' => 'value', '#value' => $format->format, '#parents' => $parents);
-    $tips = _filter_tips(variable_get('filter_default_format', 1), FALSE);
-    $form['format']['guidelines'] = array(
-      '#title' => t('Formatting guidelines'),
-      '#markup' => theme('filter_tips', $tips, FALSE, $extra),
-    );
-  }
   $form[] = array('#markup' => $extra);
   return $form;
 }