i2c: i801: Remove unneeded warning after wait_event_timeout timeout

When passing -ETIMEDOUT to i801_check_post() it will emit a timeout
error message. I don't see much benefit in an additional warning
stating more or less the same.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>