[gtk+] Drop gsk_renderer_get/set_viewport from the docs

[Matthias Clasen <matthiasc src gnome org>]

commit 1ee72e8ef4f7ac589762906ac45bc6adad953ec8
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 26 09:44:52 2017 -0500

    Drop gsk_renderer_get/set_viewport from the docs
    
    These no longer exist.

 docs/reference/gsk/gsk4-sections.txt |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/docs/reference/gsk/gsk4-sections.txt b/docs/reference/gsk/gsk4-sections.txt
index 3268d42..71ee47e 100644
--- a/docs/reference/gsk/gsk4-sections.txt
+++ b/docs/reference/gsk/gsk4-sections.txt
@@ -1,8 +1,6 @@
 <SECTION>
 <FILE>GskRenderer</FILE>
 gsk_renderer_new_for_window
-gsk_renderer_set_viewport
-gsk_renderer_get_viewport
 gsk_renderer_get_window
 gsk_renderer_get_display
 gsk_renderer_realize