simplify travis script

Author: kriskbx

.travis.yml

@@ -40,4 +40,4 @@ before_script:
   - yarn run production
 
 script:
-  - if [[ $TRAVIS_OS_NAME == 'osx' ]]; then yarn run publish; else docker run --rm -it -e "GITHUB_TOKEN=$GITHUB_TOKEN" -v $(pwd):/code kriskbx/gtt-taskbar-builder ./build.sh; fi
+  - if [[ $TRAVIS_OS_NAME == 'osx' ]]; then yarn run publish; else yarn run publish-docker; fi