WP_Taxonomy::remove_rewrite_rules()

	public function remove_rewrite_rules() {
		/* @var WP $wp */
		global $wp;

		// Remove query var.
		if ( false !== $this->query_var ) {
			$wp->remove_query_var( $this->query_var );
		}

		// Remove rewrite tags and permastructs.
		if ( false !== $this->rewrite ) {
			remove_rewrite_tag( "%$this->name%" );
			remove_permastruct( $this->name );
		}
	}