Move "Delete Repository" stuff to Diffusion

Summary: Ref T2231. This just moves the "Delete" dialog from Repositories to Diffusion. This dialog just shows instructions and isn't interesting.

Test Plan: {F75093}

Reviewers: btrahan, chad

Reviewed By: chad

CC: aran

Maniphest Tasks: T2231

Differential Revision: https://secure.phabricator.com/D7412

src/applications/diffusion/application/PhabricatorApplicationDiffusion.php

@@ -74,6 +74,7 @@ final class PhabricatorApplicationDiffusion extends PhabricatorApplication {
             'actions/' => 'DiffusionRepositoryEditActionsController',
             '(?P<edit>remote)/' => 'DiffusionRepositoryCreateController',
             'local/' => 'DiffusionRepositoryEditLocalController',
+            'delete/' => 'DiffusionRepositoryEditDeleteController',
           ),
         ),
         'inline/' => array(