Drop Travis CI support

Fixes: PROD-25037 (PROD:25037)

Change-Id: Id0a07a862ce6b0a06c80562c1006e354a6551fda
diff --git a/.kitchen.yml b/.kitchen.yml
index 3c5f6be..74272ff 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -50,18 +50,33 @@
   name: inspec
   sudo: true
 
+docker_images:
+  - &xenial-20163 <%=ENV['IMAGE_XENIAL_20163'] || 'docker-dev-local.docker.mirantis.net/epcim/salt/saltstack-ubuntu-xenial-salt-2016.3/salt:2018_11_19'%>
+  - &xenial-20177 <%=ENV['IMAGE_XENIAL_20177'] || 'docker-dev-local.docker.mirantis.net/epcim/salt/saltstack-ubuntu-xenial-salt-2017.7/salt:2018_11_19'%>
+  - &xenial-stable <%=ENV['IMAGE_XENIAL_STABLE'] || 'docker-dev-local.docker.mirantis.net/epcim/salt/saltstack-ubuntu-xenial-salt-stable/salt:2018_11_19'%>
+
 platforms:
-  - name: <%= ENV['PLATFORM'] || 'saltstack-ubuntu-xenial-salt-stable' %>
+  - name: xenial-2016.3
     driver_config:
-      image: <%= ENV['PLATFORM'] || 'docker-dev-local.docker.mirantis.net/epcim/salt/saltstack-ubuntu-xenial-salt-stable/salt:2018_11_19' %>
+      image: *xenial-20163
+      platform: ubuntu
+
+  - name: xenial-2017.7
+    driver_config:
+      image: *xenial-20177
+      platform: ubuntu
+
+  - name: xenial-stable
+    driver_config:
+      image: *xenial-stable
       platform: ubuntu
 
 suites:
-
   - name: master_cluster
     provisioner:
       pillars-from-files:
         kubernetes.sls: tests/pillar/master_cluster.sls
+
   - name: pool_cluster
     provisioner:
       pillars-from-files: