How to Hide weDocs Admin Menus

function plt_hide_wedocs_menus() {
	//Hide "Tools → Scheduled Actions".
	remove_submenu_page('tools.php', 'action-scheduler');

	//Hide "weDocs".
	remove_menu_page('wedocs');
	//Hide "weDocs → Docs".
	remove_submenu_page('wedocs', 'http://127.0.0.1/wp-admin/admin.php?page=wedocs#/');
	//Hide "weDocs → Tags".
	remove_submenu_page('wedocs', 'edit-tags.php?taxonomy=doc_tag&post_type=docs');
	//Hide "weDocs → Settings".
	remove_submenu_page('wedocs', 'http://127.0.0.1/wp-admin/admin.php?page=wedocs#/settings');
	//Hide "weDocs → Migration".
	remove_submenu_page('wedocs', 'http://127.0.0.1/wp-admin/admin.php?page=wedocs#/migrate');
}

add_action('admin_menu', 'plt_hide_wedocs_menus', 11);

Where do I put this code?