cleanup: Remove unused imports.

Generated by autoflake.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>

tools/custom_check.py

@@ -1,4 +1,4 @@
-from typing import Any, Dict, List, Tuple
+from typing import List
 from zulint.custom_rules import RuleList
 
 MYPY = False

tools/deploy

@@ -9,7 +9,6 @@ import zipfile
 import textwrap
 import requests
 import urllib.parse
-import json
 from requests import Response
 
 red = '\033[91m'  # type: str

tools/pep8.py

@@ -2,7 +2,6 @@
 # Original path: zulip/tools/linter_lib/pep8.py
 
 import subprocess
-import sys
 
 from zulint.printer import print_err, colors
 

tools/server_lib/test_handler.py

@@ -1,4 +1,3 @@
-from importlib import import_module
 
 import os
 import sys

tools/test-bots

@@ -1,14 +1,12 @@
 #!/usr/bin/env python3
 
 from os.path import dirname, basename
-from importlib import import_module
 
 import os
 import sys
 import argparse
 import glob
 import unittest
-from unittest import TestCase, TestSuite
 import pytest
 
 def parse_args():