[gnome-todo] project: Remove GtdDoneButton

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit fccb50590d0a9b77281efc4219cc7220d5aef089
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Tue Sep 4 15:20:06 2018 -0300

    project: Remove GtdDoneButton
    
    Not used anymore.

 src/meson.build                         |  1 -
 src/task-list-view/gtd-task-list-view.c |  2 --
 src/widgets/gtd-done-button.c           | 39 ---------------------------------
 src/widgets/gtd-done-button.h           | 29 ------------------------
 4 files changed, 71 deletions(-)
---
diff --git a/src/meson.build b/src/meson.build
index 07fec83..faf2a9f 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -52,7 +52,6 @@ sources = files(
   'task-list-view/gtd-task-list-view.c',
   'task-list-view/gtd-task-row.c',
   'widgets/gtd-color-button.c',
-  'widgets/gtd-done-button.c',
   'widgets/gtd-expandable-entry.c',
   'widgets/gtd-row-header.c',
   'gtd-application.c',
diff --git a/src/task-list-view/gtd-task-list-view.c b/src/task-list-view/gtd-task-list-view.c
index 7308108..d289e86 100644
--- a/src/task-list-view/gtd-task-list-view.c
+++ b/src/task-list-view/gtd-task-list-view.c
@@ -20,7 +20,6 @@
 
 #include "gtd-debug.h"
 #include "gtd-dnd-row.h"
-#include "gtd-done-button.h"
 #include "gtd-edit-pane.h"
 #include "gtd-empty-list-widget.h"
 #include "gtd-task-list-view.h"
@@ -1112,7 +1111,6 @@ gtd_task_list_view_class_init (GtdTaskListViewClass *klass)
   g_type_ensure (GTD_TYPE_TASK_ROW);
   g_type_ensure (GTD_TYPE_DND_ROW);
   g_type_ensure (GTD_TYPE_EMPTY_LIST_WIDGET);
-  g_type_ensure (GTD_TYPE_DONE_BUTTON);
 
   /**
    * GtdTaskListView::color: