ci: Delete commented-out centos

.github/workflows/ci.yml

@@ -47,30 +47,6 @@ jobs:
       - name: distribution tarball is complete
         run: ./.github/workflows/scripts/dist-tarball-check
 
-  #test-centos8:
-  #  runs-on: ubuntu-latest
-  #  container: centos:8
-  #  steps:
-  #    - uses: actions/checkout@v2
-  #    - name: install dependencies
-  #      run: |
-  #        dnf --refresh --enablerepo=PowerTools install -y \
-  #            automake \
-  #            make \
-  #            perl-HTTP-Daemon \
-  #            perl-IO-Socket-INET6 \
-  #            perl-Test-Warnings \
-  #            perl-core \
-  #            ;
-  #    - name: autogen
-  #      run: ./autogen
-  #    - name: configure
-  #      run: ./configure
-  #    - name: check
-  #      run: make VERBOSE=1 AM_COLOR_TESTS=always check
-  #    - name: distcheck
-  #      run: make VERBOSE=1 AM_COLOR_TESTS=always distcheck
-
   test-fedora:
     runs-on: ubuntu-latest
     container: fedora