Remove unnecessary duplicate buildbot crumb.

src/applications/buildbot/controller/PhabricatorBuildbotController.php

@@ -8,10 +8,6 @@ final class PhabricatorBuildbotController extends PhabricatorController {
   public function buildApplicationCrumbs() {
     $crumbs = parent::buildApplicationCrumbs();
 
-    $crumbs->addCrumb(
-      id(new PhabricatorCrumbView())
-      ->setName('Buildbot'));
-
     return $crumbs;
   }