WP_Block_Patterns_Registry::unregister

	public function unregister( $pattern_name ) {
		if ( ! $this->is_registered( $pattern_name ) ) {
			/* translators: 1: Pattern name. */
			$message = sprintf( __( 'Pattern "%1$s" not found.' ), $pattern_name );
			_doing_it_wrong( __METHOD__, $message, '5.5.0' );
			return false;
		}

		unset( $this->registered_patterns[ $pattern_name ] );

		return true;
	}