Remove unusual explicit calls to policy capability descriptions from Diviner

Summary: Fixes T12015. This is weird and probably got copy/pasted from something else that was also being weird, since the methods were empty and I previously removed them.

Test Plan: Edited a book in Diviner.

Reviewers: chad, avivey

Reviewed By: avivey

Maniphest Tasks: T12015

Differential Revision: https://secure.phabricator.com/D17056

src/applications/diviner/controller/DivinerBookEditController.php

@@ -92,15 +92,13 @@ final class DivinerBookEditController extends DivinerController {
           ->setName('viewPolicy')
           ->setPolicyObject($book)
           ->setCapability($view_capability)
-          ->setPolicies($policies)
-          ->setCaption($book->describeAutomaticCapability($view_capability)))
+          ->setPolicies($policies))
       ->appendChild(
         id(new AphrontFormPolicyControl())
           ->setName('editPolicy')
           ->setPolicyObject($book)
           ->setCapability($edit_capability)
-          ->setPolicies($policies)
-          ->setCaption($book->describeAutomaticCapability($edit_capability)))
+          ->setPolicies($policies))
       ->appendChild(
         id(new AphrontFormSubmitControl())
           ->setValue(pht('Save'))