address pylint errors

This commit addresses the three following pylint errors:

- plugins/module_utils/cloud.py:145:27: isinstance-second-argument-not-valid-type: Second argument of isinstance is not a type
- plugins/module_utils/cloudfront_facts.py:166:0: unnecessary-comprehension: Unnecessary use of a comprehension
- plugins/module_utils/core.py:192:4: property-with-parameters: Cannot have defined parameters for properties

plugins/module_utils/cloudfront_facts.py

@@ -163,7 +163,7 @@ def summary_get_distribution_list(self, streaming=False):
                 temp_distribution = {}
                 for key_name in key_list:
                     temp_distribution[key_name] = dist[key_name]
-                temp_distribution['Aliases'] = [alias for alias in dist['Aliases'].get('Items', [])]
+                temp_distribution['Aliases'] = dist['Aliases'].get('Items', [])
                 temp_distribution['ETag'] = self.get_etag_from_distribution_id(dist['Id'], streaming)
                 if not streaming:
                     temp_distribution['WebACLId'] = dist['WebACLId']

plugins/module_utils/core.py

@@ -188,7 +188,6 @@ def resource(self, service):
         return boto3_conn(self, conn_type='resource', resource=service,
                           region=region, endpoint=ec2_url, **aws_connect_kwargs)
 
-    @property
     def region(self, boto3=True):
         return get_aws_region(self, boto3)