ringdht: don't do "cancelPut"

early cancelPut can sometimes prevent to send
the message to all nodes.
cancelPut should only be used when the data
can be discarded from the dht (not the case here).

Change-Id: I71464faa828ac49ae20e329e554d7981c8b795f5
Tuleap: #709

src/ringdht/ringaccount.cpp

@@ -237,7 +237,6 @@ RingAccount::newOutgoingCall(const std::string& toUrl)
                         call->onFailure();
                 } else
                     RING_DBG("Successfully put ICE descriptor on DHT");
-                shared_this->dht_.cancelPut(callkey, vid);
             }
         );
 
@@ -1005,7 +1004,6 @@ RingAccount::incomingCall(dht::IceCandidates&& msg)
                     call->onFailure();
             } else
                 RING_DBG("Successfully put ICE descriptor reply on DHT");
-            shared_this->dht_.cancelPut(shared_this->callKey_, vid);
         }
     );
     if (!ice->start(msg.ice_data)) {