Remove obsolete get_aws_client calls.
Remove obsolete get_aws_client calls.

dacut/hpc-lab-maker,dacut/hpc-lab-maker,dacut/aws-lab-cafe,dacut/hpc-lab-maker,dacut/aws-lab-cafe,dacut/hpc-lab-maker,dacut/aws-lab-cafe,dacut/hpc-lab-maker,dacut/aws-lab-cafe,dacut/aws-lab-cafe,dacut/hpc-lab-maker,dacut/aws-lab-cafe