remove amazon linux 1 image option

Author: wleepang

src/templates/cromwell/cromwell-resources.template.yaml

@@ -115,7 +115,6 @@ Parameters:
     Type: AWS::SSM::Parameter::Value<AWS::EC2::Image::Id>
     Default: /aws/service/ami-amazon-linux-latest/amzn2-ami-hvm-x86_64-gp2
     AllowedValues:
-      #- /aws/service/ami-amazon-linux-latest/amzn-ami-hvm-x86_64-gp2
       - /aws/service/ami-amazon-linux-latest/amzn2-ami-hvm-x86_64-gp2
 
   CromwellVersion: