Drop old nonworking checks and workarounds for CVS

.github/workflows/unit_tests.yml

@@ -147,10 +147,6 @@ jobs:
           eb --search '^foss-2019b.eb' | tee eb_search_foss.out
           grep '/foss-2019b.eb$' eb_search_foss.out
 
-          # make sure CVS easyconfigs are included in installation (cfr. issue #10325)
-          echo "Searching for CVS easyconfigs..."
-          eb --search '^CVS-' | grep '/CVS-'
-
           # try installing M4 with system toolchain (requires ConfigureMake easyblock + easyconfig)
           # use /tmp/sources because that has cached downloads (see cache step above)
           eb --prefix /tmp/$USER/$GITHUB_SHA --sourcepath /tmp/sources M4-1.4.18.eb
@@ -184,12 +180,3 @@ jobs:
           else
             echo "No .git folders found in source tarball: OK"
           fi
-
-          # CVS easyconfigs must be included in source tarball,
-          # see https://github.com/easybuilders/easybuild-easyconfigs/issues/10325
-          cvs_easyconfigs=$(find . -name 'CVS-*.eb')
-          if [ -z "$cvs_easyconfigs" ]; then
-            echo "CVS easyconfigs not found" && false
-          else
-            echo "Found CVS easyconfigs: $cvs_easyconfigs"
-          fi

setup.cfg

@@ -74,7 +74,3 @@ builtins =
     SOURCELOWER_PY2_WHL,
     SOURCE_PY3_WHL,
     SOURCELOWER_PY3_WHL
-
-[sdist]
-# Don't remove CVS and RCS directories
-prune = 0