BUILD: resolvers: define missing types in resolvers.h
proxy, server, stream_interface and list were used but not defined. Let's
define them as well as act_rule and drop action-t.h.
diff --git a/include/haproxy/resolvers.h b/include/haproxy/resolvers.h
index f82406d..70211a8 100644
--- a/include/haproxy/resolvers.h
+++ b/include/haproxy/resolvers.h
@@ -22,9 +22,14 @@
#ifndef _HAPROXY_RESOLVERS_H
#define _HAPROXY_RESOLVERS_H
-#include <haproxy/action-t.h>
#include <haproxy/resolvers-t.h>
+struct proxy;
+struct server;
+struct stream_interface;
+struct act_rule;
+struct list;
+
extern struct list sec_resolvers;
extern unsigned int resolv_failed_resolutions;