Remove GITHUB_STATUS_TOKEN

This was used a long time ago for bors, but Buildbot now reports status
indirectly via Homu.

.travis/test_pillars/buildbot/master.sls

@@ -4,6 +4,5 @@ buildbot:
     'http-pass': 'TEST_BUILDBOT_HTTP_PASS'
     'change-pass': 'TEST_BUILDBOT_CHANGE_PASS'
     'gh-doc-token': 'TEST_BUILDBOT_GH_DOC_TOKEN'
-    'gh-status-token': 'TEST_BUILDBOT_GH_STATUS_TOKEN'
     'gh-hook-secret': 'TEST_BUILDBOT_GH_HOOK_SECRET'
     'homu-secret': 'TEST_BUILDBOT_HOMU_SECRET'

buildbot/master/files/config/master.cfg

@@ -5,7 +5,7 @@ from buildbot.plugins import *
 
 import factories
 from passwords import HTTP_USERNAME, HTTP_PASSWORD, SLAVE_PASSWORD, CHANGE_PASSWORD
-from passwords import GITHUB_STATUS_TOKEN, HOMU_BUILDBOT_SECRET
+from passwords import HOMU_BUILDBOT_SECRET
 
 LINUX_RESERVED_SLAVES = ["servo-linux1", "servo-linux2"]
 MAC_SLAVES = ["servo-mac1", "servo-mac2", "servo-mac3"]

buildbot/master/files/config/passwords.py

@@ -3,5 +3,4 @@
 SLAVE_PASSWORD = "{{ pillar['buildbot']['credentials']['slave-pass'] }}"
 CHANGE_PASSWORD = "{{ pillar['buildbot']['credentials']['change-pass'] }}"
 GITHUB_DOC_TOKEN = "{{pillar['buildbot']['credentials']['gh-doc-token'] }}"
-GITHUB_STATUS_TOKEN = "{{pillar['buildbot']['credentials']['gh-status-token'] }}"
 HOMU_BUILDBOT_SECRET = "{{pillar['buildbot']['credentials']['homu-secret'] }}"