Revert reduction in message check frequency in packet processing threads

Unfortunately, if we don't check before processing every packet
then we run the risk of failing to intercept the RTP at the
very start of a voice call.

debian/changelog

@@ -9,8 +9,6 @@ openli (1.1.11-1) unstable; urgency=medium
     threads. Standalone SMS interception threads now no longer exist.
   * Collector: add configuration option to specify a coremap for an
     individual input.
-  * Collector: decreased frequency at which packet processing threads will
-    check for incoming messages from session tracking threads.
   * Collector: improved packet processing thread performance by avoiding
     fragment offset calculations if the packet is clearly not a fragment.
   * Collector: improved encoding performance by pre-encoding certain

src/collector/collector.c

@@ -926,9 +926,7 @@ static libtrace_packet_t *process_packet(libtrace_t *trace,
 
     packet_info_t pinfo;
 
-    if (loc->pkts_since_msg_read >= PACKETS_PER_READ_THRESH) {
 	check_for_messages(loc);
-    }
 
     loc->pkts_since_msg_read ++;
     l3 = trace_get_layer3(pkt, &ethertype, &rem);