commit 94f471aaea13b61d5d1b8d98d28a6c3cca4b4722
Author: Jen Lampton <jen@jeneration.com>
Date:   Fri Mar 1 23:22:44 2013 -0800

    remove custom-block-block since it is never used

diff --git a/core/modules/block/custom_block/custom_block.module b/core/modules/block/custom_block/custom_block.module
index 9bed19c..e1b0292 100644
--- a/core/modules/block/custom_block/custom_block.module
+++ b/core/modules/block/custom_block/custom_block.module
@@ -121,10 +121,6 @@ function custom_block_menu() {
  */
 function custom_block_theme($existing, $type, $theme, $path) {
   return array(
-    'custom_block_block' => array(
-      'variables' => array('body' => NULL, 'format' => NULL),
-      'template' => 'custom-block-block',
-    ),
     'custom_block_add_list' => array(
       'variables' => array('content' => NULL),
       'file' => 'custom_block.pages.inc',
@@ -134,15 +130,6 @@ function custom_block_theme($existing, $type, $theme, $path) {
 }
 
 /**
- * Preprocess variables for custom block template.
- *
- * @see custom-block-block.html.twig
- */
-function template_preprocess_custom_block_block($variables) {
-  $variables['body'] = check_markup($variables['body'], $variables['format']);
-}
-
-/**
  * Loads a custom block type.
  *
  * @param int $id
diff --git a/core/modules/block/custom_block/templates/custom-block-block.html.twig b/core/modules/block/custom_block/templates/custom-block-block.html.twig
deleted file mode 100644
index 27f06d1..0000000
--- a/core/modules/block/custom_block/templates/custom-block-block.html.twig
+++ /dev/null
@@ -1,14 +0,0 @@
-{#
-/**
- * Default theme implementation to present the content of a custom block.
- *
- * Available variables:
- * - body: The content of the custom block.
- *
- * @see template_preprocess()
- * @see template_preprocess_custom_block_block()
- *
- * @ingroup themeable
- */
- #}
- {{ body }}