Uninstall Conduit calls when uninstalling applications

Summary: Fixes T2698. When applications are installed, their Conduit calls should drop out. This will also let us land Releeph without exposing Conduit calls.

Test Plan:
  - Viewed Conduit console; uninstalled some applications and verified their calls dropped out.
  - Tried to make an uninstalled call; got an appropriate error.

Reviewers: edward, btrahan

Reviewed By: edward

CC: aran

Maniphest Tasks: T2698

Differential Revision: https://secure.phabricator.com/D5302

src/applications/conduit/controller/PhabricatorConduitController.php

@@ -86,6 +86,12 @@ abstract class PhabricatorConduitController extends PhabricatorController {
       $group_name = head(explode('.', $method_name));
 
       $method_object = newv($method_class, array());
+
+      $application = $method_object->getApplication();
+      if ($application && !$application->isInstalled()) {
+        continue;
+      }
+
       $status = $method_object->getMethodStatus();
 
       $key = sprintf(