tty: Removing the deprecated function tty_vhangup_locked()
tty: Removing the deprecated function tty_vhangup_locked()

The function tty_vhangup_locked() was deprecated, removed it
from the tty.h also.

Signed-off-by: Liu, Chuansheng <858732b0d97598091e89a0d1be1593caf0442efe@intel.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs