feat: 移除无需的import

GxPrint.py

@@ -10,7 +10,6 @@ import win32api
 import os
 import threading
 from flask import Flask, request, jsonify
-from PyPDF2 import PdfWriter, PdfReader
 from flask_cors import CORS
 import ctypes
 import pystray
@@ -20,8 +19,6 @@ from pystray import MenuItem
 import socket
 import logging
 from logging.handlers import RotatingFileHandler
-import time
-import threading
 
 
 CUR_DIR = os.path.dirname(os.path.abspath(__file__))