Remove old Countdown route

Summary: removes old phabricator.com/countdown/{id} route and code that uses that URL scheme

Test Plan: loaded phabricator.com/countdown, verified that generated links point to phabricator.com/CXXX

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T12524

Differential Revision: https://secure.phabricator.com/D17681

src/applications/countdown/application/PhabricatorCountdownApplication.php

@@ -42,8 +42,6 @@ final class PhabricatorCountdownApplication extends PhabricatorApplication {
       '/countdown/' => array(
         '(?:query/(?P<queryKey>[^/]+)/)?'
           => 'PhabricatorCountdownListController',
-        '(?P<id>[1-9]\d*)/'
-          => 'PhabricatorCountdownViewController',
         'comment/(?P<id>[1-9]\d*)/'
           => 'PhabricatorCountdownCommentController',
         $this->getEditRoutePattern('edit/')

src/applications/countdown/query/PhabricatorCountdownSearchEngine.php

@@ -110,7 +110,7 @@ final class PhabricatorCountdownSearchEngine
         ->setObject($countdown)
         ->setObjectName($countdown->getMonogram())
         ->setHeader($countdown->getTitle())
-        ->setHref($this->getApplicationURI("{$id}/"))
+        ->setHref($countdown->getURI())
         ->addByline(
           pht(
             'Created by %s',