s4/resolve: drop unused include

Since the commits around c9587205aa1e10a71db96389d76c0e8e1f80e76b we use IDL
based marshalling and don't need the include anymore.

Drop it, as it causes a compilation failure on AIX

  [1852/3392] Compiling source4/libcli/resolve/dns_ex.c
  "../../source4/libcli/resolve/dns_ex.c", line 111.25: 1506-022 (S) "class" is not a member of "struct dns_res_rec".

This happens because on AIX the header has:

  /* ISC defines class member as rr_class. */
  #ifdef __cplusplus
  #define rr_class nsrr_class
  #else
  #define rr_class class
  #endif

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Mon Jul 20 07:46:42 UTC 2026 on atb-devel-224

diff --git a/source4/libcli/resolve/dns_ex.c b/source4/libcli/resolve/dns_ex.c
index 4d6e229be6de7cbaee1dfaf388869298ca70e698..9b58fbfe1abb5a3b61ab6a6ac2f33bf762813e91 100644 (file)
--- a/source4/libcli/resolve/dns_ex.c
+++ b/source4/libcli/resolve/dns_ex.c
@@ -43,7 +43,6 @@
 #include "lib/addns/dnsquery.h"
 #include "lib/util/sys_rw.h"
 #include "lib/util/smb_strtox.h"
-#include <arpa/nameser.h>
 #include <resolv.h>
 
 struct dns_ex_state {