Revert "lte: Merge branch 'lte-rlc-fix-pdu-delivering', MR !30"

This reverts commit 50cfb45bd1, reversing
changes made to ae2f33cf73.

The commit is faulty because it does not consider LTE HARQ timings.
So, in LTE, would happen that a packet is delivered even in the case that the
previous packet is under HARQ retransmission.

We will check the standard and see what does apply in this case.

Natale

src/lte/model/lte-rlc-um.cc

@@ -485,11 +485,11 @@ LteRlcUm::DoReceivePdu (LteMacSapUser::ReceivePduParameters rxPduParams)
     {
       NS_LOG_LOGIC ("SN is outside the reordering window");
 
-      ReassembleOutsideWindow ();
-
       m_vrUh = seqNumber + 1;
       NS_LOG_LOGIC ("New VR(UH) = " << m_vrUh);
 
+      ReassembleOutsideWindow ();
+
       if ( ! IsInsideReorderingWindow (m_vrUr) )
         {
           m_vrUr = m_vrUh - m_windowSize;