network: Clean up includes

Split out of #37344.

src/network/networkd-queue.h

@@ -1,16 +1,8 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 #pragma once
 
-#include "sd-netlink.h"
-
-#include "alloc-util.h"
-#include "hash-funcs.h"
 #include "netif-sriov.h"
-
-typedef struct Link Link;
-typedef struct NetDev NetDev;
-typedef struct Manager Manager;
-typedef struct Request Request;
+#include "networkd-forward.h"
 
 typedef int (*request_process_func_t)(Request *req, Link *link, void *userdata);
 typedef int (*request_netlink_handler_t)(sd_netlink *nl, sd_netlink_message *m, Request *req, Link *link, void *userdata);
@@ -59,7 +51,7 @@ typedef enum RequestType {
         _REQUEST_TYPE_INVALID = -EINVAL,
 } RequestType;
 
-struct Request {
+typedef struct Request {
         unsigned n_ref;
 
         Manager *manager; /* must be non-NULL */
@@ -89,7 +81,7 @@ struct Request {
         request_netlink_handler_t netlink_handler;
 
         bool waiting_reply;
-};
+} Request;
 
 Request *request_ref(Request *req);
 Request *request_unref(Request *req);