ivi-shell: clean up unnecesary header

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

ivi-shell/ivi-layout.c

@@ -53,12 +53,7 @@
  *
  */
 
-#include <sys/wait.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
 #include <string.h>
-#include <linux/input.h>
 
 #include "compositor.h"
 #include "ivi-layout-export.h"

ivi-shell/ivi-shell.c

@@ -32,12 +32,7 @@
  */
 #include "config.h"
 
-#include <sys/wait.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
 #include <string.h>
-#include <linux/input.h>
 #include <dlfcn.h>
 #include <limits.h>
 #include <assert.h>