tty: unexport tty_ldisc_release

Initially, tty_ldisc_release() was exported for speakup (spk_tty) while
in staging. Later, the call to this function was removed as it was bogus
anyway.

Remove the export now.

Signed-off-by: Jiri Slaby <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/tty_ldisc.c

···
 
 	tty_ldisc_debug(tty, "released\n");
 }
-EXPORT_SYMBOL_GPL(tty_ldisc_release);
 
 /**
  *	tty_ldisc_init		-	ldisc setup for new tty