diff --git a/.docker/Dockerfile.check-format b/.docker/Dockerfile.check-format
deleted file mode 100644
index 7716ec220..000000000
--- a/.docker/Dockerfile.check-format
+++ /dev/null
@@ -1,10 +0,0 @@
-FROM ubuntu:19.10
-
-ENV DEBIAN_FRONTEND=noninteractive
-
-RUN apt-get -y install clang-format
-
-WORKDIR /build
-
-CMD ["/bin/sh"]
-ENTRYPOINT ["./tools/docker/build.sh"]