Update docker

[tianon]

Changes:

• docker-library/docker@487a0ba: Merge pull request Remove EOL 18.09 docker#189 from tao12345666333/18.09-eol
• docker-library/docker@38da344: Remove EOL 18.09.

[yosifkit]

Diff:

diff --git a/_bashbrew-arches b/_bashbrew-arches
index e51022f..64258e9 100644
--- a/_bashbrew-arches
+++ b/_bashbrew-arches
@@ -1,15 +1,3 @@
-docker:18 @ amd64
-docker:18 @ arm32v6
-docker:18 @ arm32v7
-docker:18 @ arm64v8
-docker:18-dind @ amd64
-docker:18-dind @ arm32v6
-docker:18-dind @ arm32v7
-docker:18-dind @ arm64v8
-docker:18-git @ amd64
-docker:18-git @ arm32v6
-docker:18-git @ arm32v7
-docker:18-git @ arm64v8
 docker:dind @ amd64
 docker:dind @ arm32v6
 docker:dind @ arm32v7
diff --git a/_bashbrew-list b/_bashbrew-list
index 6aaf743..e8cfc94 100644
--- a/_bashbrew-list
+++ b/_bashbrew-list
@@ -1,12 +1,3 @@
-docker:18
-docker:18-dind
-docker:18-git
-docker:18.09
-docker:18.09-dind
-docker:18.09-git
-docker:18.09.9
-docker:18.09.9-dind
-docker:18.09.9-git
 docker:19
 docker:19-dind
 docker:19-dind-rootless
diff --git a/docker_18-dind/Dockerfile b/docker_18-dind/Dockerfile
deleted file mode 100644
index 42d2d48..0000000
diff --git a/docker_18-dind/dockerd-entrypoint.sh b/docker_18-dind/dockerd-entrypoint.sh
deleted file mode 100755
index 8015b39..0000000
diff --git a/docker_18-git/Dockerfile b/docker_18-git/Dockerfile
deleted file mode 100644
index 2e79c60..0000000
diff --git a/docker_18/Dockerfile b/docker_18/Dockerfile
deleted file mode 100644
index cd26792..0000000
diff --git a/docker_18/docker-entrypoint.sh b/docker_18/docker-entrypoint.sh
deleted file mode 100755
index d41cef8..0000000
diff --git a/docker_18/modprobe.sh b/docker_18/modprobe.sh
deleted file mode 100755
index b357d89..0000000