staging: rtl8723bs: remove unneeded header file include

remove unneeded header file include.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/b58b5edf820026f08cb7289c1461561ecc95d41f.1619254603.git.fabioaiuto83@gmail.com


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