[gtk+] Drop get/set_scale_factor from gsk docs

[Matthias Clasen <matthiasc src gnome org>]

commit 48f1e53e1ed5b2778f95b89e1c5291306866bc94
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 5 08:37:18 2017 -0800

    Drop get/set_scale_factor from gsk docs
    
    They 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 b189478..3268d42 100644
--- a/docs/reference/gsk/gsk4-sections.txt
+++ b/docs/reference/gsk/gsk4-sections.txt
@@ -3,8 +3,6 @@
 gsk_renderer_new_for_window
 gsk_renderer_set_viewport
 gsk_renderer_get_viewport
-gsk_renderer_set_scale_factor
-gsk_renderer_get_scale_factor
 gsk_renderer_get_window
 gsk_renderer_get_display
 gsk_renderer_realize