drop experimental async scoped db conn

app/database.py

@@ -1,11 +1,7 @@
-from asyncio import current_task
-
 from typing import AsyncGenerator
 
-from fastapi import HTTPException
 from fastapi.encoders import jsonable_encoder
-from sqlalchemy.exc import SQLAlchemyError
-from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_scoped_session
+from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine
 from sqlalchemy.orm import sessionmaker
 
 from app import config
@@ -23,21 +19,9 @@ engine = create_async_engine(
 # expire_on_commit=False will prevent attributes from being expired
 # after commit.
 async_session_factory = sessionmaker(engine, expire_on_commit=False, class_=AsyncSession)
-AsyncScopedSession = async_scoped_session(async_session_factory, scopefunc=current_task)
 
 
 # Dependency
 async def get_db() -> AsyncGenerator:
     async with async_session_factory() as session:
-        try:
-            yield session
-            await session.commit()
-        except SQLAlchemyError as sql_ex:
-            await session.rollback()
-            raise sql_ex
-        except HTTPException as http_ex:
-            await session.rollback()
-            raise http_ex
-        finally:
-            await session.close()
-
+        yield session