Delete declarations which don't exist.

Bug: http://b/28178111
Change-Id: I72d5d015d7927a8df24b3973bf8a052053a067fb
diff --git a/libc/dns/include/resolv_private.h b/libc/dns/include/resolv_private.h
index 3ab8ea6..8dad926 100644
--- a/libc/dns/include/resolv_private.h
+++ b/libc/dns/include/resolv_private.h
@@ -536,6 +536,15 @@
 
 #undef __socketcall
 
+// Symbols that are supposed to be in resolv.h, but that we aren't exporting.
+int ns_parserr2(ns_msg*, ns_sect, int, ns_rr2*);
+int ns_name_pton2(const char*, u_char*, size_t, size_t*);
+int ns_name_unpack2(const u_char*, const u_char*, const u_char*, u_char*, size_t, size_t*);
+int ns_name_eq(ns_nname_ct, size_t, ns_nname_ct, size_t);
+int ns_name_owned(ns_namemap_ct, int, ns_namemap_ct, int);
+int ns_name_map(ns_nname_ct, size_t, ns_namemap_t, int);
+int ns_name_labels(ns_nname_ct, size_t);
+
 __END_DECLS
 
 #pragma GCC visibility pop