WP_Filesystem_SSH2::delete( string $file, bool $recursive = false, string|false $type = false ): bool

544	public function delete( $file, $recursive = false, $type = false ) {545		if ( 'f' === $type || $this->is_file( $file ) ) {546			return ssh2_sftp_unlink( $this->sftp_link, $file );547		}548 549		if ( ! $recursive ) {550			return ssh2_sftp_rmdir( $this->sftp_link, $file );551		}552 553		$filelist = $this->dirlist( $file );554 555		if ( is_array( $filelist ) ) {556			foreach ( $filelist as $filename => $fileinfo ) {557				$this->delete( $file . '/' . $filename, $recursive, $fileinfo['type'] );558			}559		}560 561		return ssh2_sftp_rmdir( $this->sftp_link, $file );562	}