Remove unused link monitor script (pypa#486)

Author: Thea Flowers

.travis.yml

@@ -3,4 +3,4 @@ sudo: false
 python:
 - 3.6
 install: pip install --upgrade nox-automation virtualenv
-script: nox -s build checklinks
+script: nox -s build

nox.py

@@ -3,8 +3,6 @@
 # Attribution-ShareAlike license:
 #   http://creativecommons.org/licenses/by-sa/3.0.
 
-import os
-
 import nox
 
 
@@ -23,23 +21,3 @@ def preview(session):
     build(session)
     session.chdir('build/html')
     session.run('python', '-m', 'http.server')
-
-
-def linkmonitor(session, command):
-    if not os.path.exists(os.path.join('build', 'html')):
-        session.error('HTML output not available, run nox -s build first.')
-    session.interpreter = 'python3.6'
-    session.install('-r', 'scripts/linkmonitor/requirements.txt')
-    session.run(
-        'python', 'scripts/linkmonitor/linkmonitor.py', command,
-        success_codes=range(0, 100))
-
-
-@nox.session
-def checklinks(session):
-    linkmonitor(session, 'check')
-
-
-@nox.session
-def updatelinks(session):
-    linkmonitor(session, 'update')