Removed the requirement for review_content field to be mandatory when

using "link" method. This partially addresses ietf-tools#2520. Commit ready for
merge.
 - Legacy-Id: 15349

Author: kivinen

ietf/doc/views_review.py

@@ -443,7 +443,6 @@ def require_field(f):
             require_field("review_file")
         elif submission_method == "link":
             require_field("review_url")
-            require_field("review_content")
 
 @login_required
 def complete_review(request, name, request_id):