staging: dgnc: remove duplicated tty defines

The dgnc driver defined numerous TTY defines that the core kernel
already defines.  So just remove this duplication.

Cc: Lidza Louina <lidza.louina@gmail.com>
Cc: Mark Hounschell <markh@compro.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2018-01-11 17:50:22 +01:00
commit 0f45b23aed