Remove circle.yml

Using travis now

circle.yml

@@ -1,16 +0,0 @@
-machine:
-  pre:
-    - curl -sSL https://s3.amazonaws.com/circle-downloads/install-circleci-docker.sh | bash -s -- 1.10.0
-  services:
-    - docker
-
-dependencies:
-  override:
-    - sudo add-apt-repository ppa:duggan/bats --yes
-    - sudo apt-get update -qq
-    - sudo apt-get install -qq bats
-    - make update-dependencies
-
-test:
-  override:
-    - make test