remove the only minor change comment in status (#81)

Author: pfps

spec/index.html

@@ -113,7 +113,6 @@
   <p>This document is part of RDF 1.2 document suite.
     This is a revision of the 2014 Semantics specification for RDF
     [[RDF11-MT]] and supersedes that document.
-    The technical content of the document is unchanged, only minor editorial changes have been made.
   </p>
 
   <section id="related" data-include="./common/related.html"></section>