minor #832 Remove outdated comment (codedmonkey)

This PR was merged into the master branch.

Discussion
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Remove outdated comment

Removes a comment that was obsoleted by changing usages of `@Security` to the `@IsGranted` annotation.

Commits
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7660c76 Remove outdated comment

src/Controller/Admin/BlogController.php

@@ -158,9 +158,6 @@ public function edit(Request $request, Post $post): Response
      *
      * @Route("/{id}/delete", methods={"POST"}, name="admin_post_delete")
      * @IsGranted("delete", subject="post")
-     *
-     * The Security annotation value is an expression (if it evaluates to false,
-     * the authorization mechanism will prevent the user accessing this resource).
      */
     public function delete(Request $request, Post $post): Response
     {