Refactor entrypoint script: enhance Wine initialization process and remove obsolete test script

Dockerfile

@@ -39,8 +39,6 @@ WORKDIR     /home/container
 STOPSIGNAL SIGINT
 
 COPY        --chown=container:container ./../entrypoint.sh /entrypoint.sh
-COPY        --chown=container:container ./../test-wine-dotnet.sh /test-wine-dotnet.sh
 RUN         chmod +x /entrypoint.sh
-RUN         chmod +x /test-wine-dotnet.sh
 ENTRYPOINT    ["/usr/bin/tini", "-g", "--"]
 CMD         ["/entrypoint.sh"]