Remove unused files and directories

Dockerfile

Makefile

bin/template_process

bin/update_intel_compilers_yaml

docker/MPSD.asc

docker/check_buildlog.py

octopus/README.md

octopus/foss-cuda-mpi-config.sh

octopus/foss-mpi-config.sh

octopus/foss-serial-config.sh

octopus/foss2022a-cuda-mpi-config.sh

octopus/foss2022a-mpi-config.sh

octopus/foss2022a-serial-config.sh

octopus/foss2022b-cuda-mpi-config.sh

octopus/foss2022b-mpi-config.sh

octopus/foss2022b-serial-config.sh

octopus/foss2023a-cuda-mpi-config.sh

octopus/foss2023a-mpi-config.sh

octopus/foss2023a-serial-config.sh

octopus/foss2023b-cuda-mpi-config.sh