Remove dependency installation which is now bundled into CircleCI Docker image.
Remove dependency installation which is now bundled into CircleCI Docker image.

These are now built into the CircleCI image we already use
(meteor/circleci), thanks to the changes in meteor/circleci#1.

Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor