staing: rtl8712: else after return or break warning

This patch fixes checkpatch.pl warning.
WARNING: else is not generally useful after a break or return
Signed-off-by: Gamze POLAT <gamzepolat94@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl871x_recv.c

@@ -517,7 +517,6 @@ static sint validate_recv_data_frame(struct _adapter *adapter,
 		return _FAIL;
 	if (psta == NULL)
 		return _FAIL;
-	else
 	precv_frame->u.hdr.psta = psta;
 	pattrib->amsdu = 0;
 	/* parsing QC field */