diff --git a/protoc-artifacts/Dockerfile b/protoc-artifacts/Dockerfile
deleted file mode 100644
index 278bc7452d..0000000000
--- a/protoc-artifacts/Dockerfile
+++ /dev/null
@@ -1,55 +0,0 @@
-FROM centos:6.9
-
-RUN yum install -y git \
-                   tar \
-                   wget \
-                   make \
-                   autoconf \
-                   curl-devel \
-                   unzip \
-                   automake \
-                   libtool \
-                   glibc-static.i686 \
-                   glibc-devel \
-                   glibc-devel.i686 \
-                   && \
-    yum clean all
-
-# Install Java 8
-RUN wget -q --no-cookies --no-check-certificate \
-    --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" \
-    "http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u131-linux-x64.tar.gz" \
-    -O - | tar xz -C /var/local
-ENV JAVA_HOME /var/local/jdk1.8.0_131
-ENV PATH $JAVA_HOME/bin:$PATH
-
-# Install Maven
-RUN wget -q http://apache.cs.utah.edu/maven/maven-3/3.3.9/binaries/apache-maven-3.3.9-bin.tar.gz -O - | \
-    tar xz -C /var/local
-ENV PATH /var/local/apache-maven-3.3.9/bin:$PATH
-
-# Install GCC 4.8 to support -static-libstdc++
-RUN wget http://people.centos.org/tru/devtools-2/devtools-2.repo -P /etc/yum.repos.d && \
-    bash -c 'echo "enabled=1" >> /etc/yum.repos.d/devtools-2.repo' && \
-    bash -c "sed -e 's/\$basearch/i386/g' /etc/yum.repos.d/devtools-2.repo > /etc/yum.repos.d/devtools-i386-2.repo" && \
-    sed -e 's/testing-/testing-i386-/g' -i /etc/yum.repos.d/devtools-i386-2.repo && \
-    rpm --rebuilddb
-
-RUN yum install -y devtoolset-2-gcc \
-                   devtoolset-2-gcc-c++ \
-                   devtoolset-2-binutils \
-                   devtoolset-2-libstdc++-devel \
-                   devtoolset-2-libatomic-devel \
-                   libatomic \
-                   devtoolset-2-gcc.i686 \
-                   devtoolset-2-gcc-c++.i686 \
-                   devtoolset-2-binutils.i686 \
-                   devtoolset-2-libstdc++-devel.i686 \
-                   devtoolset-2-libatomic-devel.i686 \
-                   libatomic.i686 && \
-    yum clean all
-
-COPY scl-enable-devtoolset.sh /var/local/
-
-# Start in devtoolset environment that uses GCC 4.7
-ENTRYPOINT ["/var/local/scl-enable-devtoolset.sh"]