diff --git a/gtk/gtkstylecontext.c b/gtk/gtkstylecontext.c
index 8463b93c0f..c15acac6ed 100644
--- a/gtk/gtkstylecontext.c
+++ b/gtk/gtkstylecontext.c
@@ -471,42 +471,6 @@ gtk_style_context_remove_provider_for_display (GdkDisplay       *display,
   _gtk_style_cascade_remove_provider (cascade, provider);
 }
 
-/*
- * gtk_style_context_set_id:
- * @context: a #GtkStyleContext
- * @id: (allow-none): the id to use or %NULL for none.
- *
- * Sets the CSS ID to be used when obtaining style information.
- **/
-void
-gtk_style_context_set_id (GtkStyleContext *context,
-                          const char      *id)
-{
-  GtkStyleContextPrivate *priv = gtk_style_context_get_instance_private (context);
-
-  g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
-
-  gtk_css_node_set_id (priv->cssnode, g_quark_from_string (id));
-}
-
-/*
- * gtk_style_context_get_id:
- * @context: a #GtkStyleContext
- *
- * Returns the CSS ID used when obtaining style information.
- *
- * Returns: (nullable): the ID or %NULL if no ID is set.
- **/
-const char *
-gtk_style_context_get_id (GtkStyleContext *context)
-{
-  GtkStyleContextPrivate *priv = gtk_style_context_get_instance_private (context);
-
-  g_return_val_if_fail (GTK_IS_STYLE_CONTEXT (context), NULL);
-
-  return g_quark_to_string (gtk_css_node_get_id (priv->cssnode));
-}
-
 /**
  * gtk_style_context_set_state:
  * @context: a #GtkStyleContext
diff --git a/gtk/gtkstylecontextprivate.h b/gtk/gtkstylecontextprivate.h
index c40442d498..580bb105c6 100644
--- a/gtk/gtkstylecontextprivate.h
+++ b/gtk/gtkstylecontextprivate.h
@@ -33,9 +33,6 @@ G_BEGIN_DECLS
 GtkStyleContext *gtk_style_context_new_for_node              (GtkCssNode      *node);
 
 GtkCssNode     *gtk_style_context_get_node                   (GtkStyleContext *context);
-void            gtk_style_context_set_id                     (GtkStyleContext *context,
-                                                              const char      *id);
-const char *    gtk_style_context_get_id                     (GtkStyleContext *context);
 GtkStyleProvider *
                 gtk_style_context_get_style_provider         (GtkStyleContext *context);
 
@@ -47,8 +44,6 @@ void            gtk_style_context_save_to_node               (GtkStyleContext *c
 GtkCssStyle *   gtk_style_context_lookup_style               (GtkStyleContext *context);
 GtkCssValue   * _gtk_style_context_peek_property             (GtkStyleContext *context,
                                                               guint            property_id);
-gboolean       _gtk_style_context_check_region_name          (const gchar     *str);
-
 void           _gtk_style_context_get_cursor_color           (GtkStyleContext    *context,
                                                               GdkRGBA            *primary_color,
                                                               GdkRGBA            *secondary_color);