Merge pull request #54 from kubecost/AjayTripathy-remove-unnecessary-Docker

remove unnecessary git installation

Dockerfile

@@ -18,7 +18,7 @@ COPY . .
 RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -installsuffix cgo -o /go/bin/app
 
 FROM alpine:3.4
-RUN apk add --update --no-cache ca-certificates git
+RUN apk add --update --no-cache ca-certificates
 COPY --from=build-env /go/bin/app /go/bin/app
 ADD ./cloud/default.json /models/default.json
 ADD ./cloud/azure.json /models/azure.json