Remove await hack to prevent deadlocks

[rsubtil]

godotengine/godot#80432 was the root cause for a deadlock in _joy_connection_changed. As it has been cherry-picked for 4.1.2 which is now the minimum addon version, this hack can now be deleted:

controller_icons/addons/controller_icons/ControllerIcons.gd

Lines 108 to 117 in b20c168

	func _on_joy_connection_changed(device, connected):
	if device == 0:
	if connected:
	# An await is required, otherwise a deadlock happens
	await get_tree().process_frame
	_set_last_input_type(InputType.CONTROLLER)
	else:
	# An await is required, otherwise a deadlock happens
	await get_tree().process_frame
	_set_last_input_type(InputType.KEYBOARD_MOUSE)