Revert update from bug24268 (revision c406a0238638)

Author: Steve Powell

src/com/rabbitmq/client/impl/ChannelN.java

@@ -161,13 +161,12 @@ public void clearConfirmListeners() {
     public boolean waitForConfirms()
         throws InterruptedException
     {
-        long seqHead = this.getNextPublishSeqNo();
         synchronized (unconfirmedSet) {
             while (true) {
                 if (getCloseReason() != null) {
                     throw Utility.fixStackTrace(getCloseReason());
                 }
-                if (unconfirmedSet.headSet(seqHead).isEmpty()) {
+                if (unconfirmedSet.isEmpty()) {
                     boolean aux = onlyAcksReceived;
                     onlyAcksReceived = true;
                     return aux;