staging: rtl8723au: rtl8723a_add_rateatid() simplyfy code

No point shifting raid right, just to shift it left again before
re-adding it.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed