Remove testcafe from travis

.travis.yml

@@ -18,7 +18,6 @@ install:
   - wget https://raw.githubusercontent.com/frappe/bench/master/playbooks/install.py
   - sudo python install.py --develop --user travis --without-bench-setup
   - sudo pip install -e ~/bench
-  - npm install -g testcafe
 
   - rm $TRAVIS_BUILD_DIR/.git/shallow
   - cd ~/ && bench init frappe-bench --frappe-path $TRAVIS_BUILD_DIR
@@ -27,8 +26,6 @@ install:
 script:
   - set -e
   - bench --verbose run-tests
-  - bench reinstall --yes
-  - testcafe chrome apps/frappe/frappe/tests/testcafe/
 
 before_script:
   - mysql -u root -ptravis -e 'create database test_frappe'