Remove issue marker for #63 and remove issueBase override.

Author: gkellogg

spec/index.html

@@ -36,7 +36,6 @@
 
       xref: ["I18N-GLOSSARY", "INFRA"],
       github: "https://github.com/w3c/rdf-concepts/",
-      issueBase: "https://github.com/w3c/rdf-concepts/issues",
       group:           "rdf-star",
       doJsonLd:     true,
       wgPublicList: "public-rdf-star-wg"
@@ -671,10 +670,6 @@ <h3>IRIs</h3>
           in IRIs [[RFC3492]]</li>
         <li>IRIs that are not in Unicode [=Normalization Form C=] [[I18N-Glossary]]</li>
       </ul>
-      <p class="issue" data-number="63">
-        Change Punnycode-encoding refernece from [[RFC3492]] to [[RFC5890]].
-        Also, rephrase this note accordingly.
-      </p>
     </div>
   </section>