remove unused includes

This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.

src/machine/image-dbus.c

@@ -20,7 +20,6 @@
 ***/
 
 #include "bus-label.h"
-#include "bus-common-errors.h"
 #include "strv.h"
 #include "bus-util.h"
 #include "machine-image.h"

src/machine/machine-dbus.c

@@ -21,7 +21,6 @@
 
 #include <errno.h>
 #include <string.h>
-#include <arpa/inet.h>
 #include <sys/mount.h>
 
 /* When we include libgen.h because we need dirname() we immediately

src/machine/machine-dbus.h

@@ -22,7 +22,6 @@
 ***/
 
 #include "sd-bus.h"
-#include "machine.h"
 
 extern const sd_bus_vtable machine_vtable[];
 

src/machine/machine.c

@@ -28,7 +28,6 @@
 #include "util.h"
 #include "mkdir.h"
 #include "hashmap.h"
-#include "strv.h"
 #include "fileio.h"
 #include "special.h"
 #include "unit-name.h"

src/machine/machine.h

@@ -26,7 +26,6 @@ typedef struct MachineOperation MachineOperation;
 typedef enum KillWho KillWho;
 
 #include "list.h"
-#include "util.h"
 #include "machined.h"
 
 typedef enum MachineState {

src/machine/machinectl.c

@@ -24,7 +24,6 @@
 #include <errno.h>
 #include <string.h>
 #include <getopt.h>
-#include <pwd.h>
 #include <locale.h>
 #include <fcntl.h>
 #include <netinet/in.h>

src/machine/machined-dbus.c

@@ -22,21 +22,12 @@
 #include <errno.h>
 #include <string.h>
 #include <unistd.h>
-#include <pwd.h>
 
 #include "sd-id128.h"
-#include "sd-messages.h"
-#include "strv.h"
-#include "mkdir.h"
 #include "path-util.h"
-#include "special.h"
-#include "fileio-label.h"
-#include "label.h"
-#include "utf8.h"
 #include "unit-name.h"
 #include "bus-util.h"
 #include "bus-common-errors.h"
-#include "time-util.h"
 #include "cgroup-util.h"
 #include "machine-image.h"
 #include "image-dbus.h"

src/machine/machined.c

@@ -20,17 +20,11 @@
 ***/
 
 #include <errno.h>
-#include <pwd.h>
-#include <fcntl.h>
 #include <string.h>
 #include <unistd.h>
-#include <sys/epoll.h>
 
 #include "sd-daemon.h"
-#include "strv.h"
-#include "conf-parser.h"
 #include "cgroup-util.h"
-#include "mkdir.h"
 #include "bus-util.h"
 #include "bus-error.h"
 #include "label.h"

src/machine/machined.h

@@ -22,9 +22,7 @@
 ***/
 
 #include <stdbool.h>
-#include <inttypes.h>
 
-#include "util.h"
 #include "list.h"
 #include "hashmap.h"
 #include "sd-event.h"