feat(git): Remove git builds (#201)

All this stuff lives in https://github.com/getsentry/sentry/tree/master/docker now.

Author: BYK

README.md

@@ -1,4 +1,4 @@
-# About this Repo [![Build Status][build-status-image]][build-status-url] [![Docker Status][docker-status-image]][docker-status-url]
+# About this Repo [![Build Status][build-status-image]][build-status-url]
 
 This is the Git repo of the official Docker image for [sentry](https://registry.hub.docker.com/_/sentry/). See the
 Hub page for the full readme on how to use the Docker image and for information
@@ -13,5 +13,3 @@ If you'd like to use docker-compose or try Sentry using Docker, head over to htt
 
 [build-status-image]: https://img.shields.io/travis/getsentry/docker-sentry.svg
 [build-status-url]: https://travis-ci.org/getsentry/docker-sentry
-[docker-status-image]: https://img.shields.io/docker/cloud/build/getsentry/sentry.svg
-[docker-status-url]: https://hub.docker.com/r/getsentry/sentry/builds