Fix: Avoid using global proxies when installing u2

deploy/adb.py

@@ -44,6 +44,12 @@ class AdbManager(DeployConfig):
                     if module in message:
                         show_fix_tip(module)
                         exit(1)
+
+            # Remove global proxies, or uiautomator2 will go through it
+            for k in list(os.environ.keys()):
+                if k.lower().endswith('_proxy'):
+                    del os.environ[k]
+
             from uiautomator2.init import Initer
             for device in adbutils.adb.iter_device():
                 init = Initer(device, loglevel=logging.DEBUG)