deleting backup files and folders

roles/slurm-common.bak/defaults/main.yml

roles/slurm-common.bak/files/scripts/nvidia-probe.py

roles/slurm-common.bak/handlers/main.yml

roles/slurm-common.bak/tasks/createSlurmDirectories.yml

roles/slurm-common.bak/tasks/installCgroup.yml

roles/slurm-common.bak/tasks/installMungeFromSource.yml

roles/slurm-common.bak/tasks/installSlurmFromSource.yml

roles/slurm-common.bak/tasks/main.yml

roles/slurm-common.bak/templates/cgroup.conf.j2

...slurm-common.bak/templates/cgroup_allowed_devices.conf.j2

roles/slurm-common.bak/templates/gres.conf.j2

roles/slurm-common.bak/templates/gres_sub.conf.j2

roles/slurm-common.bak/templates/job_submit.lua.j2

roles/slurm-common.bak/templates/munge.initd.j2

roles/slurm-common.bak/templates/munge.service.j2

roles/slurm-common.bak/templates/munge_key.j2

roles/slurm-common.bak/templates/slurm-vpn.conf.j2

roles/slurm-common.bak/templates/slurm.conf.j2

roles/slurm-common.bak/templates/slurm.epilog.j2

roles/slurm-common.bak/templates/slurm.prolog.j2