diff --git a/core/modules/forum/forum.module b/core/modules/forum/forum.module
index 42d7326..4e722ac 100644
--- a/core/modules/forum/forum.module
+++ b/core/modules/forum/forum.module
@@ -262,29 +262,6 @@ function _forum_node_check_node_type(EntityInterface $node) {
 }
 
 /**
- * Implements hook_node_view().
- */
-function forum_node_view(EntityInterface $node, EntityDisplay $display, $view_mode) {
-  $vid = config('forum.settings')->get('vocabulary');
-  $vocabulary = taxonomy_vocabulary_load($vid);
-  if (_forum_node_check_node_type($node)) {
-    if ($view_mode == 'full' && node_is_page($node)) {
-      // Breadcrumb navigation
-      $breadcrumb[] = l(t('Home'), NULL);
-      $breadcrumb[] = l($vocabulary->name, 'forum');
-      if ($parents = taxonomy_term_load_parents_all($node->forum_tid)) {
-        $parents = array_reverse($parents);
-        foreach ($parents as $parent) {
-          $breadcrumb[] = l($parent->label(), 'forum/' . $parent->id());
-        }
-      }
-      drupal_set_breadcrumb($breadcrumb);
-
-    }
-  }
-}
-
-/**
  * Implements hook_node_validate().
  *
  * Checks in particular that the node is assigned only a "leaf" term in the
diff --git a/core/modules/forum/forum.pages.inc b/core/modules/forum/forum.pages.inc
index 422d92e..7b7d02d 100644
--- a/core/modules/forum/forum.pages.inc
+++ b/core/modules/forum/forum.pages.inc
@@ -28,22 +28,6 @@ function forum_page($forum_term = NULL) {
     drupal_set_title($vocabulary->label());
   }
 
-  // Breadcrumb navigation.
-  $breadcrumb[] = l(t('Home'), NULL);
-  if ($forum_term->id()) {
-    // Parent of all forums is the vocabulary name.
-    $breadcrumb[] = l($vocabulary->label(), 'forum');
-  }
-  // Add all parent forums to breadcrumbs.
-  if ($forum_term->parents) {
-    foreach (array_reverse($forum_term->parents) as $parent) {
-      if ($parent->id() != $forum_term->id()) {
-        $breadcrumb[] = l($parent->label(), 'forum/' . $parent->id());
-      }
-    }
-  }
-  drupal_set_breadcrumb($breadcrumb);
-
   if ($forum_term->id() && array_search($forum_term->id(), $config->get('containers')) === FALSE) {
     // Add RSS feed for forums.
     drupal_add_feed('taxonomy/term/' . $forum_term->id() . '/feed', 'RSS - ' . $forum_term->label());