Cleans some unnecessary white spaces in ec2.py dynamic inventory plugin

plugins/inventory/ec2.py

@@ -1025,7 +1025,6 @@ class Ec2Inventory(object):
 
         return list(name_list)
 
-
     def get_host_info_dict_from_instance(self, instance):
         instance_vars = {}
         for key in vars(instance):
@@ -1225,7 +1224,6 @@ class Ec2Inventory(object):
 
         return re.sub("[^A-Za-z0-9\_]", "_", word)
 
-
     def json_format_dict(self, data, pretty=False):
         ''' Converts a dict to a JSON object and dumps it as a formatted
         string '''