core: remove unnecessary includes to netlink/route library

We no longer use libnl-route-3 library in NetworkManager. Remove the
unnecessary includes.

src/devices/nm-device.c

@@ -33,7 +33,6 @@
 #include <sys/wait.h>
 #include <arpa/inet.h>
 #include <fcntl.h>
-#include <netlink/route/addr.h>
 #include <linux/if_addr.h>
 
 #include "nm-common-macros.h"

src/platform/nm-linux-platform.c

@@ -36,12 +36,7 @@
 #include <linux/if_tun.h>
 #include <linux/if_tunnel.h>
 #include <netlink/netlink.h>
-#include <netlink/object.h>
-#include <netlink/cache.h>
-#include <netlink/route/link.h>
-#include <netlink/route/link/vlan.h>
-#include <netlink/route/addr.h>
-#include <netlink/route/route.h>
+#include <netlink/msg.h>
 #include <gudev/gudev.h>
 
 #include "nm-utils.h"

src/platform/nm-platform.c

@@ -28,11 +28,10 @@
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <string.h>
-#include <netlink/route/addr.h>
-#include <netlink/route/rtnl.h>
 #include <linux/ip.h>
 #include <linux/if_tun.h>
 #include <linux/if_tunnel.h>
+#include <linux/rtnetlink.h>
 
 #include "nm-utils.h"
 #include "nm-core-internal.h"

src/platform/nmp-object.c

@@ -23,6 +23,7 @@
 #include "nmp-object.h"
 
 #include <unistd.h>
+#include <linux/rtnetlink.h>
 
 #include "nm-utils.h"
 

src/platform/nmp-object.h

@@ -21,7 +21,6 @@
 #ifndef __NMP_OBJECT_H__
 #define __NMP_OBJECT_H__
 
-#include <netlink/netlink.h>
 #include <gudev/gudev.h>
 
 #include "nm-platform.h"