rm unused exceptions and models using aiopg

Author: pcrespov

services/web/server/src/simcore_service_webserver/garbage_collector/_core_guests.py

@@ -8,7 +8,6 @@
 from models_library.users import UserID, UserNameID
 from redis.asyncio import Redis
 from servicelib.common_headers import UNDEFINED_DEFAULT_SIMCORE_USER_AGENT_VALUE
-from simcore_postgres_database.aiopg_errors import DatabaseError
 from simcore_postgres_database.models.users import UserRole
 
 from ..projects._projects_repository_legacy import ProjectDBAPI
@@ -162,7 +161,6 @@ async def remove_guest_user_with_all_its_resources(
         await users_service.delete_user_without_projects(app, user_id=user_id)
 
     except (
-        DatabaseError,
         asyncpg.exceptions.PostgresError,
         ProjectNotFoundError,
         UserNotFoundError,

services/web/server/src/simcore_service_webserver/garbage_collector/_core_utils.py

@@ -137,7 +137,6 @@ async def replace_current_owner(
         )
 
     except (
-        DatabaseError,
         asyncpg.exceptions.PostgresError,
         ProjectNotFoundError,
         UserNotFoundError,

services/web/server/src/simcore_service_webserver/projects/models.py

@@ -2,7 +2,6 @@
 from enum import Enum
 from typing import Any, TypeAlias
 
-from aiopg.sa.result import RowProxy
 from common_library.dict_tools import remap_keys
 from models_library.api_schemas_webserver.projects import ProjectPatch
 from models_library.api_schemas_webserver.projects_ui import StudyUI
@@ -19,7 +18,6 @@
 from simcore_postgres_database.models.projects import ProjectTemplateType, ProjectType
 
 ProjectDict: TypeAlias = dict[str, Any]
-ProjectProxy: TypeAlias = RowProxy
 
 
 class ProjectTypeAPI(str, Enum):