ci: Remove zeus from travis

Author: HazAT

.travis.yml

@@ -32,13 +32,3 @@ jobs:
     - name: '@sentry/packages - build and test [node v12]'
       node_js: '12'
       script: scripts/test.sh
-
-notifications:
-  webhooks:
-    urls:
-      - https://zeus.ci/hooks/853ee4aa-d692-11e7-8c60-0a580a28020f/public/provider/travis/webhook
-    on_success: always
-    on_failure: always
-    on_start: always
-    on_cancel: always
-    on_error: always