These examples no longer need to explictly set the socket to non-blocking state

as libssh2 itself will always do that by itself.

example/simple/sftp_mkdir_nonblock.c

@@ -88,23 +88,6 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* We set the socket non-blocking. We do it after the connect just to
-       simplify the example code. */
-#ifdef F_SETFL
-    /* FIXME: this can/should be done in a more portable manner */
-    rc = fcntl(sock, F_GETFL, 0);
-    fcntl(sock, F_SETFL, rc | O_NONBLOCK);
-#elif defined(HAVE_IOCTLSOCKET)
-    ioctlsocket(sock, FIONBIO, &flag);
-#else
-#ifdef WIN32
-    u_long mode = 1;
-    ioctlsocket (sock, FIONBIO, &mode);
-#else
-#error "add support for setting the socket non-blocking here"
-#endif
-#endif
-
     /* Create a session instance
      */
     session = libssh2_session_init();