remove unused imports

Author: dantownsend

piccolo/query/base.py

@@ -1,11 +1,8 @@
 from __future__ import annotations
-import datetime
 import itertools
 from time import time
 import typing as t
 
-from asyncpg.pgproto.pgproto import UUID
-
 from piccolo.querystring import QueryString
 from piccolo.utils.sync import run_sync