Remove the gem update from .travis.yml

kennytm · kennytm · commit 6e7affffacb3 · 2018-06-08T04:31:30.000+08:00
It has no effect on deployment error and may cause further network issues.
diff --git a/.travis.yml b/.travis.yml
@@ -301,7 +301,6 @@ before_deploy:
           rm -rf obj/build/dist/doc &&
           cp -r obj/build/dist/* deploy/$TRAVIS_COMMIT;
       fi
-  - travis_retry gem update --system
   - ls -la deploy/$TRAVIS_COMMIT
 
 deploy:
