Rolling back #852470. Needs more discussion.

modules/filter/filter.module

@@ -368,25 +368,17 @@ function filter_modules_disabled($modules) {
  * @see filter_formats_reset()
  */
 function filter_formats($account = NULL) {
-  global $language;
   $formats = &drupal_static(__FUNCTION__, array());
 
-  // All available formats are cached for performance.
+  // Statically cache all existing formats upfront.
   if (!isset($formats['all'])) {
-    if ($cache = cache_get("filter_formats:{$language->language}")) {
-      $formats['all'] = $cache->data;
-    }
-    else {
-      $formats['all'] = db_select('filter_format', 'ff')
-        ->addTag('translatable')
-        ->fields('ff')
-        ->condition('status', 1)
-        ->orderBy('weight')
-        ->execute()
-        ->fetchAllAssoc('format');
-
-      cache_set("filter_formats:{$language->language}", $formats['all']);
-    }
+    $formats['all'] = db_select('filter_format', 'ff')
+      ->addTag('translatable')
+      ->fields('ff')
+      ->condition('status', 1)
+      ->orderBy('weight')
+      ->execute()
+      ->fetchAllAssoc('format');
   }
 
   // Build a list of user-specific formats.
@@ -403,13 +395,11 @@ function filter_formats($account = NULL) {
 }
 
 /**
- * Resets text format caches.
+ * Resets the static cache of all text formats.
  *
  * @see filter_formats()
  */
 function filter_formats_reset() {
-  cache_clear_all('filter_formats', 'cache', TRUE);
-  cache_clear_all('filter_list_format', 'cache', TRUE);
   drupal_static_reset('filter_list_format');
   drupal_static_reset('filter_formats');
 }
@@ -635,15 +625,9 @@ function filter_list_format($format_id) {
   $filter_info = filter_get_filters();
 
   if (!isset($filters['all'])) {
-    if ($cache = cache_get('filter_list_format')) {
-      $filters['all'] = $cache->data;
-    }
-    else {
-      $result = db_query('SELECT * FROM {filter} ORDER BY weight, module, name');
-      foreach ($result as $record) {
-        $filters['all'][$record->format][$record->name] = $record;
-      }
-      cache_set('filter_list_format', $filters['all']);
+    $result = db_query('SELECT * FROM {filter} ORDER BY weight, module, name');
+    foreach ($result as $record) {
+      $filters['all'][$record->format][$record->name] = $record;
     }
   }