[mutter] clutter-shader: Don't include unistd.h

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 15732851bc0030de43f68f2359fcf9b8c9a1e0fa
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Nov 8 19:07:06 2018 +0100

    clutter-shader: Don't include unistd.h
    
    It isn't needed.

 clutter/clutter/deprecated/clutter-shader.c | 4 ----
 1 file changed, 4 deletions(-)
---
diff --git a/clutter/clutter/deprecated/clutter-shader.c b/clutter/clutter/deprecated/clutter-shader.c
index 1a530a83e..f7ab66a87 100644
--- a/clutter/clutter/deprecated/clutter-shader.c
+++ b/clutter/clutter/deprecated/clutter-shader.c
@@ -46,10 +46,6 @@
 #include <string.h>
 #include <stdlib.h>
 
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
 #define CLUTTER_DISABLE_DEPRECATION_WARNINGS
 
 #include <glib.h>