staging: rtl8723bs: remove two unused files from tree

remove unused files from tree, for they are excluded
by the build process.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/ef7c21270ccaa2ee3d48b93d0a16fa55911c6cce.1623756906.git.fabioaiuto83@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>