cutils: Do not include "qemu/units.h" directly

All files using "qemu/units.h" definitions already include it directly,
we can now remove it from "qemu/cutils.h".
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NMarcel Apfelbaum <marcel@redhat.com>
Message-Id: <20180625124238.25339-41-f4bug@amsat.org>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

include/qemu/cutils.h

@@ -2,7 +2,6 @@
 #define QEMU_CUTILS_H
 
 #include "qemu/fprintf-fn.h"
-#include "qemu/units.h"
 
 /**
  * pstrcpy: