remove cirlce.yml

Signed-off-by: Jess Frazelle <acidburn@microsoft.com>

circle.yml

@@ -1,15 +0,0 @@
-machine:
-  environment:
-    GO15VENDOREXPERIMENT: 1
-dependencies:
-  post:
-    # install golint
-    - go get github.com/golang/lint/golint
-
-test:
-  pre:
-    - go vet $(go list ./... | grep -v vendor)
-    - test -z "$(golint ./... | grep -v vendor | tee /dev/stderr)"
-    - test -z "$(gofmt -s -l . | grep -v vendor | tee /dev/stderr)"
-  override:
-    - go test $(go list ./... | grep -v vendor)