TravisCI: Remove deploy from a separate job and add it to after_success (Cloud-CV#4522)

This PR fixes: https://app.travis-ci.com/github/Cloud-CV/EvalAI/jobs/631783000?serverType=git.

Author: RishabhJain2018

.travis.yml

@@ -49,10 +49,6 @@ jobs:
       after_success:
         - bash <(curl -s https://codecov.io/bash)
         - coveralls --rcfile=.coveragerc
-    
-    - stage: deploy
-      name: "Deployment"
-      script:
         - eval "$(ssh-agent -s)"
         - openssl aes-256-cbc -K $encrypted_77d2d82026f6_key -iv $encrypted_77d2d82026f6_iv -in scripts/deployment/evalai.pem.enc -out scripts/deployment/evalai.pem -d || true
         - ./scripts/deployment/push.sh || travis_terminate 1