[gtk+] combobox: Remove some unneeded includes

[Timm Bäder <baedert src gnome org>]

commit d6c2ef3b712053279fe58d306d13d55c5775d4a0
Author: Timm Bäder <mail baedert org>
Date:   Sun Jan 21 11:01:32 2018 +0100

    combobox: Remove some unneeded includes

 gtk/gtkcombobox.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkcombobox.c b/gtk/gtkcombobox.c
index c7f834d..daf95a5 100644
--- a/gtk/gtkcombobox.c
+++ b/gtk/gtkcombobox.c
@@ -25,7 +25,6 @@
 #include "gtkcelllayout.h"
 #include "gtkcellrenderertext.h"
 #include "gtkcellview.h"
-#include "gtkcontainerprivate.h"
 #include "gtkframe.h"
 #include "gtkiconprivate.h"
 #include "gtkbox.h"
@@ -34,8 +33,6 @@
 #include "gtkmenuprivate.h"
 #include "gtkmenushellprivate.h"
 #include "gtktogglebutton.h"
-#include "gtkwidgetpath.h"
-#include "gtkwidgetprivate.h"
 #include "gtktypebuiltins.h"
 #include "gtkprivate.h"
 #include "gtkcomboboxprivate.h"
@@ -48,7 +45,6 @@
 #include "gtkmarshalers.h"
 #include "gtkintl.h"
 
-#include "gtkentryprivate.h"
 #include "a11y/gtkcomboboxaccessible.h"