How to Hide aBlocks Admin Menus

function plt_hide_ablocks_menus() {
	//Hide "Appearance → aBlocks Templates".
	remove_submenu_page('themes.php', 'ablocks-demo-import');

	//Hide "aBlocks".
	remove_menu_page('ablocks');
	//Hide "aBlocks → Dashboard".
	remove_submenu_page('ablocks', 'ablocks');
	//Hide "aBlocks → Submissions".
	remove_submenu_page('ablocks', 'ablocks-submissions');
	//Hide "aBlocks → Theme Builder".
	remove_submenu_page('ablocks', 'ablocks-theme-builder');
	//Hide "aBlocks → Add-ons".
	remove_submenu_page('ablocks', 'ablocks-addons');
	//Hide "aBlocks → Settings".
	remove_submenu_page('ablocks', 'ablocks-settings');
	//Hide "aBlocks → Get Pro".
	remove_submenu_page('ablocks', 'ablocks-get-pro');
}

add_action('admin_menu', 'plt_hide_ablocks_menus', 11);
Where do I put this code?