init: Don't perform ioctl (TIOCSCTTY).

Doing this breaks bash in virt-rescue with the error:

  bash: cannot set terminal process group (-1): Inappropriate ioctl for device
  bash: no job control in this shell

Also ^C etc does not work.

Removing this ioctl call fixes this.

I noticed the problem because supermin's init compiled with dietlibc
worked, since the dietlibc header files don't define TIOCSCTTY and
hence the ioctl was not called.

init/init.c

@@ -240,10 +240,6 @@ main ()
 
   /* Make current process the controlling process of the tty. */
   setsid ();
-#ifdef TIOCSCTTY
-  if (ioctl (0, TIOCSCTTY, 1) == -1)
-    perror ("ioctl: TIOCSCTTY");
-#endif
 
   if (!quiet)
     fprintf (stderr, "supermin: creating /dev/root as block special %d:%d\n",