[gtk] gsk: Fix up docs a bit

[Matthias Clasen <matthiasc src gnome org>]

commit c9e08efcbff99a552739fa63ee06d18ee0cf37c1
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Mar 28 18:08:15 2019 -0400

    gsk: Fix up docs a bit
    
    Some apis that were either removed or have never
    existed were listed for the docs.

 docs/reference/gsk/gsk4-sections.txt | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)
---
diff --git a/docs/reference/gsk/gsk4-sections.txt b/docs/reference/gsk/gsk4-sections.txt
index 0e4e5468b4..e3b3151c57 100644
--- a/docs/reference/gsk/gsk4-sections.txt
+++ b/docs/reference/gsk/gsk4-sections.txt
@@ -67,11 +67,7 @@ gsk_container_node_get_n_children
 gsk_container_node_get_child
 gsk_transform_node_new
 gsk_transform_node_get_child
-gsk_transform_node_peek_transform
-gsk_offset_node_new
-gsk_offset_node_get_child
-gsk_offset_node_get_x_offset
-gsk_offset_node_get_y_offset
+gsk_transform_node_get_transform
 gsk_opacity_node_new
 gsk_opacity_node_get_child
 gsk_opacity_node_get_opacity
@@ -147,7 +143,6 @@ gsk_rounded_rect_intersects_rect
 
 <SECTION>
 <FILE>GskTransform</FILE>
-<TITLE>3D transformations</TITLE>
 GskTransform
 gsk_transform_ref
 gsk_transform_unref