tty: remove unused argument from tty_open_by_driver()

The argument 'inode' passed to tty_open_by_driver() was not being used.
Remove the extra argument.

Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lore.kernel.org/r/20191120151709.14148-1-sudipm.mukherjee@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>