Revert "Feat: github connector" (#12296)

Reverts infiniflow/ragflow#12292

common/data_source/github/utils.py

@@ -1,46 +0,0 @@
-import logging
-from collections.abc import Callable
-from typing import cast
-
-from github import Github
-from github.Repository import Repository
-
-from common.data_source.models import ExternalAccess
-
-from .models import SerializedRepository
-
-
-def get_external_access_permission(
-    repo: Repository, github_client: Github
-) -> ExternalAccess:
-    """
-    Get the external access permission for a repository.
-    This functionality requires Enterprise Edition.
-    """
-    # RAGFlow doesn't implement the Onyx EE external-permissions system.
-    # Default to private/unknown permissions.
-    return ExternalAccess.empty()
-
-
-def deserialize_repository(
-    cached_repo: SerializedRepository, github_client: Github
-) -> Repository:
-    """
-    Deserialize a SerializedRepository back into a Repository object.
-    """
-    # Try to access the requester - different PyGithub versions may use different attribute names
-    try:
-        # Try to get the requester using getattr to avoid linter errors
-        requester = getattr(github_client, "_requester", None)
-        if requester is None:
-            requester = getattr(github_client, "_Github__requester", None)
-        if requester is None:
-            # If we can't find the requester attribute, we need to fall back to recreating the repo
-            raise AttributeError("Could not find requester attribute")
-
-        return cached_repo.to_Repository(requester)
-    except Exception as e:
-        # If all else fails, re-fetch the repo directly
-        logging.warning("Failed to deserialize repository: %s. Attempting to re-fetch.", e)
-        repo_id = cached_repo.id
-        return github_client.get_repo(repo_id)