[shotwell] Remove deprecated gtk_range_set_min_slider_size

[Jens Georg <jensgeorg src gnome org>]

commit 5a00bd0e553d999877afdcd6b310a81154e40115
Author: Jens Georg <mail jensge org>
Date:   Fri Mar 30 09:07:13 2018 +0200

    Remove deprecated gtk_range_set_min_slider_size

 src/editing_tools/StraightenTool.vala |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/editing_tools/StraightenTool.vala b/src/editing_tools/StraightenTool.vala
index 023b636..f427b99 100644
--- a/src/editing_tools/StraightenTool.vala
+++ b/src/editing_tools/StraightenTool.vala
@@ -109,7 +109,6 @@ public class StraightenTool : EditingTool {
         public StraightenToolWindow(Gtk.Window container) {
             base(container);
 
-            angle_slider.set_min_slider_size(MIN_SLIDER_SIZE);
             angle_slider.set_size_request(MIN_SLIDER_SIZE, -1);
             angle_slider.set_value(0.0);
             angle_slider.set_draw_value(false);