[gnome-games] retro-input-manager: Don't set CoreView joypad controller

[Alexander Mikhaylenko <alexm src gnome org>]

commit 099eb11c4060bacddb1e66383bb22eeec5b9fa3c
Author: Yetizone <andreii lisita gmail com>
Date:   Sun Nov 18 18:07:06 2018 +0200

    retro-input-manager: Don't set CoreView joypad controller
    
    Since the CoreView already is a default controller, there's no need to set
    it as a joypad controller explicitly.

 src/retro/retro-input-manager.vala | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)
---
diff --git a/src/retro/retro-input-manager.vala b/src/retro/retro-input-manager.vala
index 7b0a5947..c31221cb 100644
--- a/src/retro/retro-input-manager.vala
+++ b/src/retro/retro-input-manager.vala
@@ -3,7 +3,6 @@
 private class Games.RetroInputManager : Object {
        private Retro.Core core;
        private Retro.CoreView view;
-       private Retro.Controller core_view_joypad;
        private KeyboardMappingManager keyboard_mapping_manager;
        private Manette.Monitor monitor;
        // This is used only to compute the port on which a device is connected,
@@ -23,7 +22,6 @@ private class Games.RetroInputManager : Object {
                keyboard_mapping_manager = new KeyboardMappingManager ();
                view.set_key_joypad_mapping (keyboard_mapping_manager.mapping);
                keyboard_mapping_manager.changed.connect (on_keyboard_mapping_manager_changed);
-               core_view_joypad = view.as_controller (Retro.ControllerType.JOYPAD);
                core.set_keyboard (view);
                view.set_as_default_controller (core);
 
@@ -41,8 +39,8 @@ private class Games.RetroInputManager : Object {
 
                core_view_joypad_port = controllers.length;
                devices += null;
-               controllers += core_view_joypad;
-               core.set_controller (core_view_joypad_port, core_view_joypad);
+               controllers += null;
+               core.set_controller (core_view_joypad_port, null);
                monitor.device_connected.connect (on_device_connected);
        }
 
@@ -76,8 +74,8 @@ private class Games.RetroInputManager : Object {
                                // Found an disconnected port and so assigning core_view_joypad to it
                                core_view_joypad_port = i;
                                devices[core_view_joypad_port] = null;
-                               controllers[core_view_joypad_port] = core_view_joypad;
-                               core.set_controller (core_view_joypad_port, core_view_joypad);
+                               controllers[core_view_joypad_port] = null;
+                               core.set_controller (core_view_joypad_port, null);
 
                                return;
                        }
@@ -87,8 +85,8 @@ private class Games.RetroInputManager : Object {
                // CoreView's joypad to ports.
                core_view_joypad_port = controllers.length;
                devices += null;
-               controllers += core_view_joypad;
-               core.set_controller (core_view_joypad_port, core_view_joypad);
+               controllers += null;
+               core.set_controller (core_view_joypad_port, null);
        }
 
        private void on_device_disconnected (Manette.Device device) {
@@ -105,8 +103,8 @@ private class Games.RetroInputManager : Object {
                        controllers[core_view_joypad_port] = null;
                        core_view_joypad_port = port;
                        devices[core_view_joypad_port] = null;
-                       controllers[core_view_joypad_port] = core_view_joypad;
-                       core.set_controller (core_view_joypad_port, core_view_joypad);
+                       controllers[core_view_joypad_port] = null;
+                       core.set_controller (core_view_joypad_port, null);
                }
                else {
                        // Just remove the controller as no need to shift the