diff --git a/core/includes/common.inc b/core/includes/common.inc
index 914d1365277..c657cd5a070 100644
--- a/core/includes/common.inc
+++ b/core/includes/common.inc
@@ -285,28 +285,6 @@ function drupal_get_profile() {
   return $profile;
 }
 
-
-/**
- * Sets the breadcrumb trail for the current page.
- *
- * @param $breadcrumb
- *   Array of links, starting with "home" and proceeding up to but not including
- *   the current page.
- *
- * @deprecated This will be removed in 8.0. Instead, register a new breadcrumb
- *   builder service.
- *
- * @see \Drupal\Core\Breadcrumb\BreadcrumbBuilderInterface
- */
-function drupal_set_breadcrumb($breadcrumb = NULL) {
-  $stored_breadcrumb = &drupal_static(__FUNCTION__);
-
-  if (isset($breadcrumb)) {
-    $stored_breadcrumb = $breadcrumb;
-  }
-  return $stored_breadcrumb;
-}
-
 /**
  * Adds output to the HEAD tag of the HTML page.
  *
diff --git a/core/modules/system/lib/Drupal/system/LegacyBreadcrumbBuilder.php b/core/modules/system/lib/Drupal/system/LegacyBreadcrumbBuilder.php
deleted file mode 100644
index 3e5cc7137f9..00000000000
--- a/core/modules/system/lib/Drupal/system/LegacyBreadcrumbBuilder.php
+++ /dev/null
@@ -1,37 +0,0 @@
-<?php
-
-/**
- * @file
- * Contains \Drupal\system\LegacyBreadcrumbBuilder.
- */
-
-namespace Drupal\system;
-
-use Drupal\Core\Breadcrumb\BreadcrumbBuilderInterface;
-
-/**
- * Class to define the legacy breadcrumb builder.
- *
- * @deprecated This will be removed in 8.0. Instead, register a new breadcrumb
- *   builder service.
- *
- * @see \Drupal\Core\Breadcrumb\BreadcrumbBuilderInterface
- *
- * This breadcrumb builder implements legacy support for the
- * drupal_set_breadcrumb() mechanic.
- * Remove this once drupal_set_breadcrumb() has been eliminated.
- */
-class LegacyBreadcrumbBuilder implements BreadcrumbBuilderInterface {
-
-  /**
-   * {@inheritdoc}
-   */
-  public function build(array $attributes) {
-    $breadcrumb = drupal_set_breadcrumb();
-    if (is_array($breadcrumb)) {
-      // $breadcrumb is expected to be an array of rendered breadcrumb links.
-      return $breadcrumb;
-    }
-  }
-
-}
diff --git a/core/modules/system/system.services.yml b/core/modules/system/system.services.yml
index 3371dad2c68..935ddfd3e3f 100644
--- a/core/modules/system/system.services.yml
+++ b/core/modules/system/system.services.yml
@@ -6,10 +6,6 @@ services:
   system.manager:
     class: Drupal\system\SystemManager
     arguments: ['@module_handler', '@database', '@entity.manager']
-  system.breadcrumb.legacy:
-    class: Drupal\system\LegacyBreadcrumbBuilder
-    tags:
-      - {name: breadcrumb_builder, priority: 500}
   system.breadcrumb.default:
     class: Drupal\system\PathBasedBreadcrumbBuilder
     arguments: ['@request', '@entity.manager', '@access_manager', '@router', '@path_processor_manager', '@config.factory',  '@title_resolver']