How to Hide the "Error Report" Admin Menu

function plt_hide_blocks_for_civicrm_menus() {
	//Hide the "Settings → Error Report" menu.
	remove_submenu_page('options-general.php', 'wp-reporting-settings');
}

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

Where do I put this code?