remove asyncssh patching

[skshetry]

Looks like this is no longer necessary, GitHub seems to return proper algorithm name these days, at least it does for me.

I tried with the following script:

import asyncio

from asyncssh import ProtocolError, connect
from asyncssh.auth import MSG_USERAUTH_PK_OK, _ClientPublicKeyAuth


def _process(self, _pkttype, _pktid, packet):
    algorithm = packet.get_string()
    key_data = packet.get_string()
    packet.check_end()

    print(algorithm, self._keypair.algorithm)

    if algorithm != self._keypair.algorithm or key_data != self._keypair.public_data:
        raise ProtocolError("Key mismatch")

    self.create_task(self._send_signed_request())
    return True


_ClientPublicKeyAuth._packet_handlers[MSG_USERAUTH_PK_OK] = _process


async def func():
    async with connect(host="github.com", username="git", known_hosts=None):
        pass


asyncio.run(func())

b'rsa-sha2-256' b'rsa-sha2-256'

See treeverse/dvc#6983 - specially treeverse/dvc@25dca0b for context.

(scmrepo commit that was split from dvc: 2978b52)

[skshetry]

cc @pmrowla

[pmrowla]

Should be fine to remove this now

[skshetry]

Thank you, @pmrowla.