Remove unused Travis deploy stage (#3340)

* Remove unused Travis deploy stage

* Remove obsolete bin/deploy-travis-pantheon.sh and deployment-targets cache

.travis.yml

@@ -22,7 +22,6 @@ cache:
     - $HOME/.npm
     - $HOME/.nvm/.cache
     - $HOME/phpunit-bin
-    - $HOME/deployment-targets
 
 branches:
   only:
@@ -160,21 +159,3 @@ jobs:
         - bash <(curl -s https://codecov.io/bash) -cF php -f /tmp/wordpress/src/wp-content/plugins/amp/build/logs/clover.xml
         - npm run test:js -- --collectCoverage
         - bash <(curl -s https://codecov.io/bash) -cF javascript -f build/logs/lcov.info
-
-    - stage: deploy
-      if: type = push AND fork = false AND ( branch =~ ^[a-z][a-z0-9-]{0,10}$ OR branch =~ ^[0-9]+\.[0-9]+$ ) AND NOT branch IN ( live, test, dev, settings, team, support, debug, multidev, files, tags, billing )
-      php: "7.1"
-      env: WP_VERSION=latest DEV_LIB_ONLY=composer,grunt
-      script:
-        - |
-          eval "$(ssh-agent -s)"
-          pantheon_branch=$( echo $TRAVIS_BRANCH | sed 's/^\([0-9]\)/v\1/' | sed 's/[^a-z0-9-]/-/' )
-          echo "Initializing deployment to Pantheon branch: $pantheon_branch"
-          openssl aes-256-cbc -K $encrypted_7eb11f40d4e9_key -iv $encrypted_7eb11f40d4e9_iv -in bin/keys/id_rsa_ampconfdemo.enc -out bin/keys/id_rsa_ampconfdemo -d
-          chmod 600 bin/keys/id_rsa_ampconfdemo
-          ./bin/deploy-travis-pantheon.sh \
-            ampconfdemo \
-            db7f3307-9808-4753-aaa4-acb387c94472 \
-            $(pwd)/bin/keys/id_rsa_ampconfdemo \
-            $pantheon_branch
-      after_script: skip