Fix duplicate name in artifact naming

appveyor.yml

@@ -271,8 +271,6 @@ after_build:
       appveyor DownloadFile https://ci.appveyor.com/api/buildjobs/%APPVEYOR_JOB_ID%/log -FileName %APPVEYOR_PROJECT_NAME%-%CI_REPO_VERSION%-%COMPILER_ID%-%CMAKE_PLATFORM%.log
   - sh: |
       cd $APPVEYOR_BUILD_FOLDER
-      if [ "$COMPILER_ID" != "clang" ]; then export COMPILER_ID=$APPVEYOR_BUILD_WORKER_IMAGE-$COMPILER_ID`$COMPILER_ID -dumpversion | tr '.' '\n'`; fi
-      if [ "$COMPILER_ID" = "clang" ]; then export COMPILER_ID=$APPVEYOR_BUILD_WORKER_IMAGE-$COMPILER_ID`$COMPILER_ID -v 2>&1 | grep version | sed 's/^.*version \([0-9]*\)\.[0-9]*\.[0-9]*.*$/\1/g'`; fi
       if [ -n "${APPVEYOR_REPO_TAG_NAME}" ]; then export CI_REPO_VERSION=${APPVEYOR_REPO_TAG_NAME:1}; else export CI_REPO_VERSION=latest; fi
       BUILD_ARCHIVE=$APPVEYOR_PROJECT_NAME-$CI_REPO_VERSION-$COMPILER_ID-$CMAKE_PLATFORM.tar.gz
       tar czf $BUILD_ARCHIVE Coin3D/*