staging/rtl8723bs/core/rtw_ap: Remove redundant call to memset

rtw_zmalloc is internally doing memset . So there is no need to call memset
again.
Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/core/rtw_ap.c

@@ -1502,8 +1502,6 @@ static int rtw_ap_set_key(
 		goto exit;
 	}
 
-	memset(psetkeyparm, 0, sizeof(struct setkey_parm));
-
 	psetkeyparm->keyid = (u8)keyid;
 	if (is_wep_enc(alg))
 		padapter->securitypriv.key_mask |= BIT(psetkeyparm->keyid);