Drop Travis CI support

Fixes: PROD-25037 (PROD:25037)

Change-Id: Ic06b6bd20c616ca05e2a55642783eaaef0d568a2
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 2ffe067..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-sudo: required
-services:
-  - docker
-
-addons:
-  apt:
-    packages:
-    - apt-transport-https
-
-install:
-  - pip install PyYAML
-  - pip install virtualenv
-  - |
-    if [ ! -e Gemfile ]; then
-       curl -s -o ./Gemfile 'https://gerrit.mcp.mirantis.com/gitweb?p=salt-formulas/salt-formulas-scripts.git;a=blob_plain;f=Gemfile;hb=refs/heads/master'
-    fi
-  - bundle install
-
-env:
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2017.7 SUITE=default
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2016.3 SUITE=default
-#    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-bionic-salt-2017.7
-
-before_script:
-  - set -o pipefail
-  - make test | tail
-
-script:
-  - test ! -e .kitchen.yml || bundle exec kitchen converge ${SUITE} || true
-  - test ! -e .kitchen.yml || bundle exec kitchen verify ${SUITE} -t tests/integration
-
-notifications:
-  webhooks:
-    urls:
-      - https://webhooks.gitter.im/e/6123573504759330786b
-    on_success: change # options: [always|never|change] default: always
-    on_failure: never  # options: [always|never|change] default: always
-    on_start: never    # options: [always|never|change] default: always
-    on_cancel: never   # options: [always|never|change] default: always
-    on_error: never    # options: [always|never|change] default: always
-  email: false