Remove support for legacy cluster (#162)

Remove the support for the legacy Slurm cluster now that ParallelCluster is
supported.
The legacy cluster will still be available for reference on the v1 branch,
but will no longer be developed or supported.

Resolves #144

Author: cartalla

source/resources/playbooks/roles/SlurmCtl/files/opt/slurm/cluster/bin/EC2InstanceTypeInfoPkg/EC2InstanceTypeInfo.py renamed to source/EC2InstanceTypeInfoPkg/EC2InstanceTypeInfo.py

@@ -1907,9 +1907,9 @@ def get_az_info_from_instance_config(self, instance_config: dict) -> dict:
         '''
         Get AZ info selected by the config file.
         '''
+        logger.debug(f"instance_config:\n{json.dumps(instance_config, indent=4)}")
         az_info = {}
         for region, region_dict in instance_config['Regions'].items():
-            logger.debug(f"region: {region}")
             ec2_client = self.ec2[region]
             for az_dict in region_dict['AZs']:
                 subnet = az_dict['Subnet']