@brief Unlink (delete) a file.
@param sftp The sftp session handle.
@param file The file to unlink/delete.
@return 0 on success, < 0 on error with ssh and sftp error set.
@see sftp_get_error()
See Implementation
@brief Unlink (delete) a file.
@param sftp The sftp session handle.
@param file The file to unlink/delete.
@return 0 on success, < 0 on error with ssh and sftp error set.
@see sftp_get_error()