remove arbitrary limit from dns result parsing

The name resolution would abort when getting more than 63 records per
request, due to what seems to be a left-over from the original code.
This check was non-breaking but spurious prior to TCP fallback
support, since any 512-byte packet with more than 63 records was
necessarily malformed. But now, it wrongly rejects valid results.

Reported by Daniel Stefanik in Alpine Linux aports issue 15320.

src/network/dns_parse.c

@@ -12,7 +12,6 @@ int __dns_parse(const unsigned char *r, int rlen, int (*callback)(void *, int, c
 	p = r+12;
 	qdcount = r[4]*256 + r[5];
 	ancount = r[6]*256 + r[7];
-	if (qdcount+ancount > 64) return -1;
 	while (qdcount--) {
 		while (p-r < rlen && *p-1U < 127) p++;
 		if (p>r+rlen-6)