Make allow_anonymous and allow_anonymous_to_peers use field access in templates

lms/templates/discussion/_inline_new_post.html

@@ -7,9 +7,9 @@
                 <div class="options">
                     <input type="checkbox" name="follow" class="discussion-follow" class="discussion-follow" id="new-post-follow" checked><label for="new-post-follow">follow this post</label>
                     <br>
-                    % if course.metadata.get("allow_anonymous", True):
+                    % if course.allow_anonymous:
                         <input type="checkbox" name="anonymous" class="discussion-anonymous" id="new-post-anonymous"><label for="new-post-anonymous">post anonymously</label>
-                    %elif course.metadata.get("allow_anonymous_to_peers", False):
+                    %elif course.allow_anonymous_to_peers:
                         <input type="checkbox" name="anonymous_to_peers" class="discussion-anonymous-to-peers" id="new-post-anonymous-to-peers"><label for="new-post-anonymous-to-peers">post anonymously to classmates</label>
                     %endif
                     %if is_course_cohorted:

lms/templates/discussion/_new_post.html

@@ -41,9 +41,9 @@
                 <div class="options">
                     <input type="checkbox" name="follow" class="discussion-follow" class="discussion-follow" id="new-post-follow" checked><label for="new-post-follow">follow this post</label>
                     <br>
-                    % if course.metadata.get("allow_anonymous", True):
+                    % if course.allow_anonymous:
                         <input type="checkbox" name="anonymous" class="discussion-anonymous" id="new-post-anonymous"><label for="new-post-anonymous">post anonymously</label>
-                    %elif course.metadata.get("allow_anonymous_to_peers", False):
+                    %elif course.allow_anonymous_to_peers:
                         <input type="checkbox" name="anonymous_to_peers" class="discussion-anonymous-to-peers" id="new-post-anonymous-to-peers"><label for="new-post-anonymous-to-peers">post anonymously to classmates</label>
                     %endif
                     %if is_course_cohorted and is_moderator: