Remove CentOS image

.github/workflows/build.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        image: ['centos', 'debian', 'fedora', 'opensuse', 'cuda',
+        image: ['debian', 'fedora', 'opensuse', 'cuda',
                 'ubuntu-18.04', 'ubuntu-20.04', 'ubuntu-wo-dependencies']
     steps:
     - uses: actions/checkout@master

docker/Dockerfile-centos

-FROM centos/devtoolset-6-toolchain-centos7
-USER root
-RUN yum -y install epel-release && yum -y install \
-  blas-devel \
-  boost169-devel \
-  boost169-openmpi-devel \
-  ccache \
-  cmake3 \
-  fftw-devel \
-  gdb \
-  git \
-  hdf5-openmpi-devel \
-  lapack-devel \
-  make \
-  openmpi-devel \
-  python36 \
-  python36-devel \
-  python36-Cython \
-  python36-numpy \
-  python36-scipy \
-  python36-pip \
-  python36-setuptools \
-  vim \
-  which \
-  zlib-devel \
-  && yum clean all \
-  && ln -s /usr/bin/cmake3 /usr/bin/cmake
-ENV BOOST_INCLUDEDIR=/usr/include/boost169
-ENV BOOST_LIBRARYDIR=/usr/lib64/boost169
-RUN ln -s /usr/lib64/openmpi/lib/boost169/libboost_mpi.so  /usr/lib64/boost169/libboost_mpi.so
-RUN useradd -m espresso -u 1000
-USER 1000
-ENV HOME="/home/espresso"
-# install Python3 packages locally
-RUN pip3 install --user h5py
-WORKDIR /home/espresso