staging: wilc1000: remove duplicate null check routine

This patch removes the duplicate null check routine. The same null check
routine is twice executed. Therefore the duplicated routine is not necessary.
Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Tony Cho <tony.cho@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/host_interface.c

@@ -957,11 +957,6 @@ static s32 Handle_Scan(struct host_if_drv *hif_drv,
 		pstrHostIFscanAttr->strHiddenNetwork.pstrHiddenNetworkInfo = NULL;
 	}
 
-	if (pstrHostIFscanAttr->pu8ChnlFreqList != NULL) {
-		kfree(pstrHostIFscanAttr->pu8ChnlFreqList);
-		pstrHostIFscanAttr->pu8ChnlFreqList = NULL;
-	}
-
 	if (pu8HdnNtwrksWidVal != NULL)
 		kfree(pu8HdnNtwrksWidVal);