staging: ks7010: Remove initialisation in ks_hostif.c

The initial value of return variable result is never used, so it can be
removed.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>