staging: ks7010: remove '\' character from michael_block function

This commit removes '\' character from michael_block function.
It seems these two were not removed properly in the following
commit:
 - staging: ks7010: replace MichaelBlockFunction macro with
   inline function (c61cc2cc

).

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>