Revert "HID: hid-asus.c: Maps key 0x35 (display off) to KEY_SCREENLOCK"

Revert "HID: hid-asus.c: Maps key 0x35 (display off) to KEY_SCREENLOCK"

This reverts commit 2f039422e6458472f03fb03d292027f23942999d.

As Dmitry Torokhov pointed out, the previous code (KEY_DISPLAY_OFF) is
actually correct. The real issue is that current desktop environments
don't deal it properly. Mapping it to another event does not solve the
issue.

So I'm reverting that change, keeping key 0x35 mapped to KEY_DISPLAY_OFF

Signed-off-by: Vinícius Angiolucci Reis <angiolucci@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>