isdn/gigaset: drop unused ldisc methods
authorTilman Schmidt <tilman@imap.cc>
Mon, 13 Jul 2015 22:37:13 +0000 (00:37 +0200)
committerDavid S. Miller <davem@davemloft.net>
Thu, 16 Jul 2015 00:24:45 +0000 (17:24 -0700)
The line discipline read and write methods are optional so the dummy
methods in ser_gigaset are unnecessary and can be removed.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/isdn/gigaset/ser-gigaset.c

Simple merge