render_tag -> tag: phabricator_render_form -> phabricator_form

Summary: Convert most phabricator_render_form callsites. In the case of the "headsup view", it converts it by deleting the element entirely (this is the very old Maniphest/Differential header which we no longer use).

Test Plan: Poked around a bit.

Reviewers: vrana

Reviewed By: vrana

CC: aran

Maniphest Tasks: T2432

Differential Revision: https://secure.phabricator.com/D4726

src/applications/directory/controller/PhabricatorDirectoryMainController.php

@@ -322,15 +322,17 @@ final class PhabricatorDirectoryMainController
     $panel = new AphrontPanelView();
     $panel->setHeader('Jump Nav');
     $panel->appendChild(
-      phabricator_render_form(
+      phabricator_form(
         $user,
         array(
           'action' => '/jump/',
           'method' => 'POST',
           'class'  => 'phabricator-jump-nav-form',
         ),
-        $jump_input.
-        $jump_caption));
+        array(
+          $jump_input,
+          $jump_caption,
+        )));
 
     return $panel;
   }