How to remove proxy set on console

[tribeiros]

i tried this on console for proxy, but i dont know how to remove

import urllib.request,os; pf = 'Package Control.sublime-package'; ipp = sublime.installed_packages_path(); urllib.request.install_opener( urllib.request.build_opener( urllib.request.ProxyHandler({'http': 'http://USER:PASSWORD@HOST:PORT', 'https': 'https://USER:PASSWORD@HOST:PORT'})) ); open(os.path.join(ipp, pf), 'wb').write(urllib.request.urlopen( 'http://sublime.wbond.net/' + pf.replace(' ','%20')).read())

now i cant download any package

ackage Control: Urllib HTTPS Debug General
  Upgrading connection to SSL using CA certs file at /home/tribeiros/.config/sublime-text-3/Packages/User/Package Control.merged-ca-bundle
  Using hostname "codeload.github.com" for TLS SNI extension
Package Control: Error downloading package. HTTP exception InvalidCertificateException (Host proxylatam.indra.es:8080 returned an invalid certificate ([SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:548))) downloading https://codeload.github.com/scotch-io/10-percent-too-dull-for-my-tastes/zip/1.0.0.
error: Package Control