removed thread element per LC feedback

git-svn-id: file:///home/ksmith/gitmigration/svn/xmpp/trunk@3130 4b5297f7-1745-476d-ba37-a9c6900126ab

xep-0166.xml

@@ -1339,9 +1339,6 @@ PENDING  o-----------------------+   |
       </tr>
     </table>
   </section2>
-  <section2 topic='Thread Element' anchor='def-thread'>
-    <p>The syntax and semantics of the &lt;thread/&gt; element exactly match the &lt;thread/&gt; element for the &MESSAGE; stanza (qualified by the 'jabber:client' namespace) as defined in &xmppim;. This element is used to associate a Jingle session or sessions with an ongoing conversation, so that user interfaces with the ability to present multiple interactions in the same window can show an association between the conversation and the Jingle session(s).</p>
-  </section2>
 </section1>
 
 <section1 topic='Transport Types' anchor='transports'>
@@ -1583,10 +1580,6 @@ PENDING  o-----------------------+   |
                     type='reasonElementType'
                     minOccurs='0' 
                     maxOccurs='1'/>
-        <xs:element name='thread' 
-                    type='threadElementType'
-                    minOccurs='0' 
-                    maxOccurs='1'/>
         <xs:any namespace='##other' minOccurs='0' maxOccurs='unbounded'/>
       </xs:sequence>
       <xs:attribute name='action' use='required'>
@@ -1687,16 +1680,6 @@ PENDING  o-----------------------+   |
     </xs:sequence>
   </xs:complexType>
 
-  <xs:complexType name='threadElementType'>
-    <xs:simpleContent>
-      <xs:extension base='xs:NMTOKEN'>
-        <xs:attribute name='parent'
-                      type='xs:NMTOKEN'
-                      use='optional'/>
-      </xs:extension>
-    </xs:simpleContent>
-  </xs:complexType>
-
   <xs:simpleType name='empty'>
     <xs:restriction base='xs:string'>
       <xs:enumeration value=''/>