How to Hide Curatora Stories by Curatora.io Admin Menus

function plt_hide_content_curation_tool_by_curatora_io_menus() {
	//Hide "Stories".
	remove_menu_page('edit.php?post_type=story');
	//Hide "Stories → All Stories".
	remove_submenu_page('edit.php?post_type=story', 'edit.php?post_type=story');
	//Hide "Stories → Add New Story".
	remove_submenu_page('edit.php?post_type=story', 'post-new.php?post_type=story');
	//Hide "Stories → Categories".
	remove_submenu_page('edit.php?post_type=story', 'edit-tags.php?taxonomy=category&post_type=story');
	//Hide "Stories → Tags".
	remove_submenu_page('edit.php?post_type=story', 'edit-tags.php?taxonomy=post_tag&post_type=story');
}

add_action('admin_menu', 'plt_hide_content_curation_tool_by_curatora_io_menus', 15);

Where do I put this code?