iproute2: Add support for ports in xfrm on SCTP

Remove this old patch which prevents showing the xfrm ports for SCTP

This was added in commit 60c1f0f64d ("finally move buildroot-ng to trunk")

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/network/utils/iproute2/patches/006-no_sctp.patch

@@ -1,18 +0,0 @@
---- a/ip/ipxfrm.c
-+++ b/ip/ipxfrm.c
-@@ -454,7 +454,6 @@ void xfrm_selector_print(struct xfrm_sel
- 	switch (sel->proto) {
- 	case IPPROTO_TCP:
- 	case IPPROTO_UDP:
--	case IPPROTO_SCTP:
- 	case IPPROTO_DCCP:
- 	default: /* XXX */
- 		if (sel->sport_mask)
-@@ -1329,7 +1328,6 @@ static int xfrm_selector_upspec_parse(st
- 		switch (sel->proto) {
- 		case IPPROTO_TCP:
- 		case IPPROTO_UDP:
--		case IPPROTO_SCTP:
- 		case IPPROTO_DCCP:
- 		case IPPROTO_IP: /* to allow shared SA for different protocols */
- 			break;