[gtk] icontheme: Stop exporting gtk_icon_theme_color_symbolic_pixbuf

[Timm Bäder <baedert src gnome org>]

commit 0c017ff1096af010dc572dc37e5680bbb94266cb
Author: Timm Bäder <mail baedert org>
Date:   Tue Oct 30 16:23:08 2018 +0100

    icontheme: Stop exporting gtk_icon_theme_color_symbolic_pixbuf

 gtk/gtkicontheme.c        | 2 +-
 gtk/gtkiconthemeprivate.h | 7 -------
 2 files changed, 1 insertion(+), 8 deletions(-)
---
diff --git a/gtk/gtkicontheme.c b/gtk/gtkicontheme.c
index 7a46746cef..1696995cc4 100644
--- a/gtk/gtkicontheme.c
+++ b/gtk/gtkicontheme.c
@@ -3940,7 +3940,7 @@ rgba_to_pixel(const GdkRGBA  *rgba,
   pixel[3] = 255;
 }
 
-GdkPixbuf *
+static GdkPixbuf *
 gtk_icon_theme_color_symbolic_pixbuf (GdkPixbuf     *symbolic,
                                       const GdkRGBA *fg_color,
                                       const GdkRGBA *success_color,
diff --git a/gtk/gtkiconthemeprivate.h b/gtk/gtkiconthemeprivate.h
index 0144134784..ca9d5177b0 100644
--- a/gtk/gtkiconthemeprivate.h
+++ b/gtk/gtkiconthemeprivate.h
@@ -31,11 +31,4 @@ GtkIconInfo *gtk_icon_info_new_for_file (GFile *file,
                                          gint   size,
                                          gint   scale);
 
-GdkPixbuf * gtk_icon_theme_color_symbolic_pixbuf (GdkPixbuf     *symbolic,
-                                                  const GdkRGBA *fg_color,
-                                                  const GdkRGBA *success_color,
-                                                  const GdkRGBA *warning_color,
-                                                  const GdkRGBA *error_color);
-
-
 #endif /* __GTK_ICON_THEME_PRIVATE_H__ */