slirp: remove unused function u_sleep

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

slirp/misc.c

@@ -253,20 +253,6 @@ void lprint(const char *format, ...)
     va_end(args);
 }
 
-void
-u_sleep(int usec)
-{
-	struct timeval t;
-	fd_set fdset;
-
-	FD_ZERO(&fdset);
-
-	t.tv_sec = 0;
-	t.tv_usec = usec * 1000;
-
-	select(0, &fdset, &fdset, &fdset, &t);
-}
-
 void slirp_connection_info(Slirp *slirp, Monitor *mon)
 {
     const char * const tcpstates[] = {

slirp/misc.h

@@ -64,7 +64,6 @@ void snooze_hup(int);
 void snooze(void);
 void relay(int);
 void add_emu(char *);
-void u_sleep(int);
 void fd_nonblock(int);
 void fd_block(int);
 int rsh_exec(struct socket *, struct socket *, char *, char *, char *);