platform/x86: asus-laptop: remove redundant braces in if statements

Adhere to Linux kernel coding style.

Reported by checkpatch:

WARNING: braces {} are not necessary for single statement blocks

Signed-off-by: Edson Juliano Drosdeck <edson.drosdeck@gmail.com>
Link: https://lore.kernel.org/r/20231016191349.3856-1-edson.drosdeck@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>