removing unused userstore property - identifying_attribute
removing unused userstore property - identifying_attribute

cloudify-cosmo/cloudify-manager-blueprints,isaac-s/cloudify-manager-blueprints,Cloudify-PS/cloudify-manager-blueprints,isaac-s/cloudify-manager-blueprints,cloudify-cosmo/cloudify-manager-blueprints,codilime/cloudify-manager-blueprints,codilime/cloudify-manager-blueprints,codilime/cloudify-manager-blueprints,Cloudify-PS/cloudify-manager-blueprints