Remove unused code.

src/resolver.c

@@ -438,40 +438,6 @@ rdns_process_retransmit (int fd, void *arg)
  }
 }
 
-static bool
-rdns_maybe_punycode_name (const char *in, size_t inlen,
- char **out)
-{
- const char *p = in, *end = in + inlen;
- bool need_encode = false;
- uint32_t *ucs_out;
- size_t out_len;
-
- while (p != end) {
- if (*p >= 0x80) {
- need_encode = true;
- break;
- }
- p ++;
- }
-
- if (!need_encode) {
- *out = malloc (inlen + 1);
- if (*out == NULL) {
- return false;
- }
- memcpy (*out, in, inlen);
- (*out)[inlen] = '\0';
- }
- else {
- if (rdns_utf8_to_ucs4 (in, inlen, &ucs_out, &out_len) != 0) {
- return false;
- }
-
- }
-
-}
-
 struct rdns_request*
 rdns_make_request_full (
  struct rdns_resolver *resolver,