How to Hide Music Player for Elementor Admin Menus

function plt_hide_music_player_for_elementor_menus() {
	//Hide "Music Player for Elementor".
	remove_menu_page('mpfe-dashboard');
	//Hide "Music Player for Elementor → How to use".
	remove_submenu_page('mpfe-dashboard', 'mpfe-dashboard');
	//Hide "Music Player for Elementor → Import Player Templates".
	remove_submenu_page('mpfe-dashboard', 'mpfe-import');
	//Hide "Music Player for Elementor → Widgets Pack for Musicians".
	remove_submenu_page('mpfe-dashboard', 'mpfe-musician-tools');
	//Hide "Music Player for Elementor → Contact Us".
	remove_submenu_page('mpfe-dashboard', 'mpfe-dashboard-contact');
	//Hide "Music Player for Elementor → Support Forum".
	remove_submenu_page('mpfe-dashboard', 'mpfe-dashboard-wp-support-forum');
	//Hide "Music Player for Elementor → Upgrade".
	remove_submenu_page('mpfe-dashboard', 'mpfe-dashboard-pricing');
}

add_action('admin_menu', 'plt_hide_music_player_for_elementor_menus', 1000000000);
Where do I put this code?