[geary/geary-0.12] Revert "Workaround Ubuntu Ambiance and Radiance theme bugs in GTK+ 3.14-3.18."

[Michael Gratton <mjog src gnome org>]

commit ebab6ea5ad324a1c62516c321449fa6985b5a420
Author: Michael James Gratton <mike vee net>
Date:   Tue Feb 13 09:44:48 2018 +1100

    Revert "Workaround Ubuntu Ambiance and Radiance theme bugs in GTK+ 3.14-3.18."
    
    This reverts commit 143ee81b98873ee5674d98f903f536230b030553.
    
    This actually breaks Geary's CSS on Ubuntu 16.04, and it's unclear if it's
    actually needed or not.

 src/client/components/main-window.vala |   14 --------------
 ui/CMakeLists.txt                      |    1 -
 ui/ambiance.css                        |    7 -------
 3 files changed, 0 insertions(+), 22 deletions(-)
---
diff --git a/src/client/components/main-window.vala b/src/client/components/main-window.vala
index cb917d1..165e6c4 100644
--- a/src/client/components/main-window.vala
+++ b/src/client/components/main-window.vala
@@ -165,20 +165,6 @@ public class MainWindow : Gtk.ApplicationWindow {
         } catch (Error e) {
             error("Could not load CSS: %s", e.message);
         }
-
-        switch (Gtk.Settings.get_default().gtk_theme_name) {
-        case "Ambiance":
-        case "Radiance":
-            // Add workarounds for Ubuntu Ambiance and Radiance theme
-            // bugs in GTK+ 3.14-3.18.
-            try {
-                File file = File.new_for_uri(@"resource:///org/gnome/Geary/ambiance.css");
-                provider.load_from_file(file);
-            } catch (Error e) {
-                error("Could not load CSS: %s", e.message);
-            }
-            break;
-        }
     }
 
     private void setup_layout(Configuration config) {
diff --git a/ui/CMakeLists.txt b/ui/CMakeLists.txt
index 3e313ee..dc41091 100644
--- a/ui/CMakeLists.txt
+++ b/ui/CMakeLists.txt
@@ -4,7 +4,6 @@ set(RESOURCE_LIST
   STRIPBLANKS "account_cannot_remove.glade"
   STRIPBLANKS "account_list.glade"
   STRIPBLANKS "account_spinner.glade"
-              "ambiance.css"
   STRIPBLANKS "certificate_warning_dialog.glade"
               "client-web-view.js"
               "client-web-view-allow-remote-images.js"