[gtksourceview/wip/chergert/gsv-gtk4] completion: remove paintable as it is unused

[Christian Hergert <chergert src gnome org>]

commit ed2adec0ebbe038c5c39aa4a4bc66a6462ad144c
Author: Christian Hergert <chergert redhat com>
Date:   Sun Aug 30 08:45:03 2020 -0700

    completion: remove paintable as it is unused
    
    We don't separate result groups anymore, so this is not needed from
    providers.

 gtksourceview/gtksourcecompletionprovider.c | 8 --------
 gtksourceview/gtksourcecompletionprovider.h | 3 ---
 2 files changed, 11 deletions(-)
---
diff --git a/gtksourceview/gtksourcecompletionprovider.c b/gtksourceview/gtksourcecompletionprovider.c
index 5278bc026..bda9b99b4 100644
--- a/gtksourceview/gtksourcecompletionprovider.c
+++ b/gtksourceview/gtksourcecompletionprovider.c
@@ -103,14 +103,6 @@ gtk_source_completion_provider_default_init (GtkSourceCompletionProviderInterfac
        iface->activate = fallback_activate;
 }
 
-GdkPaintable *
-gtk_source_completion_provider_get_paintable (GtkSourceCompletionProvider *self)
-{
-       g_return_val_if_fail (GTK_SOURCE_IS_COMPLETION_PROVIDER (self), NULL);
-
-       return GTK_SOURCE_COMPLETION_PROVIDER_GET_IFACE (self)->get_paintable (self);
-}
-
 char *
 gtk_source_completion_provider_get_title (GtkSourceCompletionProvider *self)
 {
diff --git a/gtksourceview/gtksourcecompletionprovider.h b/gtksourceview/gtksourcecompletionprovider.h
index 32f2444aa..d090f00e4 100644
--- a/gtksourceview/gtksourcecompletionprovider.h
+++ b/gtksourceview/gtksourcecompletionprovider.h
@@ -34,7 +34,6 @@ struct _GtkSourceCompletionProviderInterface
 {
        GTypeInterface parent_iface;
 
-       GdkPaintable *(*get_paintable)        (GtkSourceCompletionProvider *self);
        char         *(*get_title)            (GtkSourceCompletionProvider  *self);
        int           (*get_priority)         (GtkSourceCompletionProvider  *self,
                                               GtkSourceCompletionContext   *context);
@@ -72,8 +71,6 @@ struct _GtkSourceCompletionProviderInterface
                                               GtkSourceCompletionProposal  *proposal);
 };
 
-GTK_SOURCE_AVAILABLE_IN_5_0
-GdkPaintable *gtk_source_completion_provider_get_paintable     (GtkSourceCompletionProvider  *self);
 GTK_SOURCE_AVAILABLE_IN_5_0
 char         *gtk_source_completion_provider_get_title         (GtkSourceCompletionProvider  *self);
 GTK_SOURCE_AVAILABLE_IN_5_0