Revert "Timeout TCP open() after 5 seconds."

This code is redundant and conflicts with lucas reimplementation of it.

This reverts commit a2f5e14a.

libavformat/tcp.c

@@ -97,7 +97,6 @@ static int tcp_open(URLContext *h, const char *uri, int flags)
     }
 
     if (ret < 0) {
-        int timeout=50;
         struct pollfd p = {fd, POLLOUT, 0};
         ret = ff_neterrno();
         if (ret == AVERROR(EINTR)) {
@@ -120,12 +119,6 @@ static int tcp_open(URLContext *h, const char *uri, int flags)
             ret = poll(&p, 1, 100);
             if (ret > 0)
                 break;
-            if(!--timeout){
-                av_log(NULL, AV_LOG_ERROR,
-                    "TCP open %s:%d timeout\n",
-                    hostname, port);
-                goto fail;
-            }
         }
         if (ret <= 0) {
             ret = AVERROR(ETIMEDOUT);