[polari] joinDialog: Move accel handling into template

[Florian Müllner <fmuellner src gnome org>]

commit 5dbb0024e6be59a416696a68b96c0894de1565d0
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Aug 19 00:13:21 2021 +0200

    joinDialog: Move accel handling into template
    
    Now that the relevant controls are defined in the template, there's
    no reason anymore for keeping the accel definitions in the code.
    
    https://gitlab.gnome.org/GNOME/polari/-/merge_requests/215

 data/resources/join-room-dialog.ui | 2 ++
 src/joinDialog.js                  | 8 --------
 2 files changed, 2 insertions(+), 8 deletions(-)
---
diff --git a/data/resources/join-room-dialog.ui b/data/resources/join-room-dialog.ui
index ce8104a4..c1b583c0 100644
--- a/data/resources/join-room-dialog.ui
+++ b/data/resources/join-room-dialog.ui
@@ -13,6 +13,7 @@
           <object class="GtkButton" id="backButton">
             <property name="visible">True</property>
             <property name="focus-on-click">False</property>
+            <accelerator key="Left" modifiers="GDK_MOD1_MASK" signal="clicked"/>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
@@ -79,6 +80,7 @@
                     <property name="visible">True</property>
                     <property name="receives-default">True</property>
                     <property name="focus-on-click">False</property>
+                    <accelerator key="n" modifiers="GDK_CONTROL_MASK" signal="clicked"/>
                     <child>
                       <object class="GtkBox">
                         <property name="visible">True</property>
diff --git a/src/joinDialog.js b/src/joinDialog.js
index a22c6416..7e1953a7 100644
--- a/src/joinDialog.js
+++ b/src/joinDialog.js
@@ -1,4 +1,3 @@
-import Gdk from 'gi://Gdk';
 import Gio from 'gi://Gio';
 import GLib from 'gi://GLib';
 import GObject from 'gi://GObject';
@@ -33,13 +32,6 @@ export default GObject.registerClass({
         params['use-header-bar'] = 1;
         super._init(params);
 
-        let accelGroup = new Gtk.AccelGroup();
-        this._connectionButton.add_accelerator('clicked',
-            accelGroup, Gdk.KEY_n, Gdk.ModifierType.CONTROL_MASK, 0);
-        this._backButton.add_accelerator('clicked',
-            accelGroup, Gdk.KEY_Left, Gdk.ModifierType.MOD1_MASK, 0);
-        this.add_accel_group(accelGroup);
-
         this._setupMainPage();
         this._setupConnectionPage();