Remove a call to daemon now that it has been removed from Fuchsia's libc

Change-Id: Icb8759da7c98d04703cbaa44c3ae5c6cbfeb98e6
diff --git a/src/main.c b/src/main.c
index e3c672a..24b325d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -137,7 +137,12 @@
     switch (test->role) {
         case 's':
 	    if (test->daemon) {
-		int rc = daemon(0, 0);
+		// TODO(kulakowski) Change this to use a
+		// Fuchsia-idiomatic way to go to the
+		// background. Relying on something with fork()-style
+		// semantics (like the daemon(3) call that used to be
+		// here) won't work.
+		int rc = -1;
 		if (rc < 0) {
 		    i_errno = IEDAEMON;
 		    iperf_errexit(test, "error - %s", iperf_strerror(i_errno));