staging: line6: Remove `device_bit' from properties

The `device_bit' member was no longer used as of commit 2807904441d4
(staging: line6: drop MIDI parameter sysfs attrs).

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Reviewed-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --cc drivers/staging/line6/driver.c
Simple merge

diff --cc drivers/staging/line6/driver.h
Simple merge

diff --cc drivers/staging/line6/pcm.h
Simple merge

diff --cc drivers/staging/line6/usbdefs.h
Simple merge