CLEANUP: resolvers: remove some more unused RSLV_UDP flags

RSLV_UPD_CNAME and RSLV_UPD_NAME_ERROR flags have now become useless since
3cf7f987 ("MINOR: dns: proper domain name validation when receiving DNS
response") as they are never set, but we forgot to remove them.

include/haproxy/resolvers-t.h

@@ -274,8 +274,6 @@ enum {
 	                            * OR provided IP found and preference is not match and an IP
 	                            * matching preference was found.
 	                            */
-	RSLV_UPD_CNAME,            /* CNAME without any IP provided in the response */
-	RSLV_UPD_NAME_ERROR,       /* name in the response did not match the query */
 	RSLV_UPD_NO_IP_FOUND,      /* no IP could be found in the response */
 };
 

src/server.c

@@ -4424,12 +4424,6 @@ int snr_resolution_cb(struct resolv_requester *requester, struct dns_counters *c
 			has_no_ip = 1;
 			goto update_status;
 
-		case RSLV_UPD_NAME_ERROR:
-			/* update resolution status to OTHER error type */
-			resolution->status = RSLV_STATUS_OTHER;
-			has_no_ip = 1;
-			goto update_status;
-
 		default:
 			has_no_ip = 1;
 			goto invalid;