--- a/contrib/docker/centos5	Sun Jul 01 23:36:53 2018 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,23 +0,0 @@
-FROM centos:centos5
-RUN \
-	sed -i 's/^mirrorlist/#mirrorlist/' /etc/yum.repos.d/*.repo && \
-	sed -i 's/^#\(baseurl=\)http:\/\/mirror.centos.org\/centos/\1http:\/\/vault.centos.org/' /etc/yum.repos.d/*.repo && \
-	sed -i 's/\$releasever/5.11/' /etc/yum.repos.d/*.repo
-
-RUN yum install -y \
-	gcc \
-	gettext \
-	make \
-	python-devel \
-	python-docutils \
-	rpm-build \
-	tar
-
-# For creating repo meta data
-RUN yum install -y \
-	bzip2-devel \
-	createrepo \
-	ncurses-devel \
-	openssl-devel \
-	readline-devel \
-	zlib-devel