int libssh2_sftp_unlink_ex(LIBSSH2_SFTP *sftp, const char *filename, unsigned int filename_len);
int libssh2_sftp_unlink(LIBSSH2_SFTP *sftp, const char *filename);
filename - Path and name of the existing filesystem entry
filename_len - Length of the path and name of the existing filesystem entry
Unlink (delete) a file from the remote filesystem.
LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.
LIBSSH2_ERROR_SOCKET_TIMEOUT -
LIBSSH2_ERROR_SFTP_PROTOCOL - An invalid SFTP protocol response was received on the socket, or an SFTP operation caused an errorcode to be returned by the server.