Description of problem:
[root@preethi pulp]# pulp-client -u admin -p admin consumer delete --help
Usage: pulp-client -u <username> -p <password> usage: pulp-client consumer delete [OPTIONS]
-h, --help show this help message and exit
-u USERNAME, --username=USERNAME
<REQUIRED> username for access to Pulp. Default user
admin is included with base install.
-p PASSWORD, --password=PASSWORD
<REQUIRED> password for access to Pulp.
[root@preethi pulp]# pulp-client -u admin -p admin consumer delete
Successfully deleted consumer [pthomas.rdu.redhat.com]
Thats intentional, delete consumer from pulp-client is only applicable for that local client. You are not suppose to use it for other consumers.