[gtksourceview] docs: remove unnecessary gtk-doc sections

[Christian Hergert <chergert src gnome org>]

commit b4811cdd53b206fc6125b9812ee74a3f018dd398
Author: Christian Hergert <chergert redhat com>
Date:   Wed Mar 10 13:46:10 2021 -0800

    docs: remove unnecessary gtk-doc sections
    
    These aren't public API, so we can drop the ** and remove some warnings
    from gtk-doc generation.

 gtksourceview/gtksourcebindinggroup.c | 2 +-
 gtksourceview/gtksourcesignalgroup.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtksourceview/gtksourcebindinggroup.c b/gtksourceview/gtksourcebindinggroup.c
index 198fb129..4d1ccda2 100644
--- a/gtksourceview/gtksourcebindinggroup.c
+++ b/gtksourceview/gtksourcebindinggroup.c
@@ -26,7 +26,7 @@
 
 #include "gtksourcebindinggroup-private.h"
 
-/**
+/*
  * SECTION:gtksourcebindinggroup:
  * @title: GtkSourceBindingGroup
  * @short_description: Binding multiple properties as a group
diff --git a/gtksourceview/gtksourcesignalgroup.c b/gtksourceview/gtksourcesignalgroup.c
index b517bc09..637eb1f7 100644
--- a/gtksourceview/gtksourcesignalgroup.c
+++ b/gtksourceview/gtksourcesignalgroup.c
@@ -25,7 +25,7 @@
 
 #include "gtksourcesignalgroup-private.h"
 
-/**
+/*
  * SECTION:gtksourcesignalgroup
  * @title: GtkSourceSignalGroup
  * @short_description: Manage a collection of signals on a #GObject