Obsolete constants ZMQ_UPSTREAM and ZMQ_DOWNSTREAM removed

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

devices/zmq_streamer/zmq_streamer.cpp

@@ -54,8 +54,8 @@ int main (int argc, char *argv [])
 
     //  TODO: make the number of I/O threads configurable.
     zmq::context_t ctx (1);
-    zmq::socket_t in_socket (ctx, ZMQ_UPSTREAM);
-    zmq::socket_t out_socket (ctx, ZMQ_DOWNSTREAM);
+    zmq::socket_t in_socket (ctx, ZMQ_PULL);
+    zmq::socket_t out_socket (ctx, ZMQ_PUSH);
 
     int n = 0;
     while (true) {

include/zmq.h

@@ -181,8 +181,6 @@ ZMQ_EXPORT int zmq_term (void *context);
 #define ZMQ_PUSH 8
 #define ZMQ_XPUB 9
 #define ZMQ_XSUB 10
-#define ZMQ_UPSTREAM ZMQ_PULL      /*  Old alias, remove in 3.x               */
-#define ZMQ_DOWNSTREAM ZMQ_PUSH    /*  Old alias, remove in 3.x               */
 
 /*  Socket options.                                                           */
 #define ZMQ_HWM 1