Removes useless domain definition.

tests/src/jndi2/base/a3servers.xml

 <?xml version="1.0"?>
 
 <config>
-  <domain name="D0" network="fr.dyade.aaa.agent.SimpleNetwork"/>
   <server id="0" name="s0" hostname="localhost">
-    <network domain="D0" port="27300"/>
     <service class="fr.dyade.aaa.agent.AdminProxy" args="8090"/>
     <service class="fr.dyade.aaa.jndi2.server.JndiServer" args="16600"/>
   </server>