crtools: remove extra headers from headers

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

include/eventfd.h

 #ifndef __CR_EVENTFD_H__
 #define __CR_EVENTFD_H__
 
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "compiler.h"
-#include "asm/types.h"
 #include "files.h"
 
 extern int is_eventfd_link(int lfd);

include/eventpoll.h

 #ifndef __CR_EVENTPOLL_H__
 #define __CR_EVENTPOLL_H__
 
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "compiler.h"
-#include "asm/types.h"
 #include "files.h"
 
 extern int is_eventpoll_link(int lfd);

include/fsnotify.h

 #ifndef __CR_FSNOTIFY_H__
 #define __CR_FSNOTIFY_H__
 
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "compiler.h"
 #include "asm/types.h"
 #include "files.h"
 

include/sockets.h

 #ifndef __CR_SOCKETS_H__
 #define __CR_SOCKETS_H__
 
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <unistd.h>
 #include <stdbool.h>
 
 #include "asm/types.h"