staging: wfx: drop useless call to hif_set_rx_filter()

staging: wfx: drop useless call to hif_set_rx_filter()

hif_set_rx_filter() apply changes on filter_prbreq and filter_bssid to
the hardware. Each time filter_prbreq and filter_bssid are changed,
hif_set_rx_filter() is called.

Currently, on extra call to hif_set_rx_filter() is made from
wfx_update_filtering(). This call is useless. Drop it.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200415161147.69738-16-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>