win32 fixes

Originally committed as revision 78 to svn://svn.ffmpeg.org/ffmpeg/trunk

libav/raw.c

@@ -16,11 +16,6 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-#include <stdlib.h>
-#include <stdio.h>
-#include <netinet/in.h>
-#include <string.h>
-#include <errno.h>
 #include "avformat.h"
 
 /* simple formats */