staging: rtl8192e: Remove variables bIsQosData and RxIs40MHzPacket

Remove unused variables bIsQosData and RxIs40MHzPacket as they are set
and never evaluated.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/7a8b579fd3d377fa961fe71e37fe4afa22f2a3b9.1708461563.git.philipp.g.hortmann@gmail.com


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