How to Hide Blocks to ShortCode Admin Menus

function plt_hide_blocks_to_shortcode_menus() {
	//Hide "Blocks to ShortCode".
	remove_menu_page('edit.php?post_type=blocks-to-shortcode');
	//Hide "Blocks to ShortCode → Blocks to ShortCode".
	remove_submenu_page('edit.php?post_type=blocks-to-shortcode', 'edit.php?post_type=blocks-to-shortcode');
	//Hide "Blocks to ShortCode → Create New ShortCode".
	remove_submenu_page('edit.php?post_type=blocks-to-shortcode', 'post-new.php?post_type=blocks-to-shortcode');
	//Hide "Blocks to ShortCode → Upgrade".
	remove_submenu_page('edit.php?post_type=blocks-to-shortcode', 'blocks-to-shortcode-pricing');
}

add_action('admin_menu', 'plt_hide_blocks_to_shortcode_menus', 1000000000);

Where do I put this code?