remove osbs-client from osbs openshift nodes, not needed

Signed-off-by: Adam Miller <admiller@redhat.com>

playbooks/groups/osbs-cluster.yml

@@ -455,72 +455,6 @@
     - name: systemctl daemon-reload
       shell: 'systemctl daemon-reload'
 
-  roles:
-    - {
-      role: osbs-client,
-        general: {
-          verbose: 0,
-          build_json_dir: '/etc/osbs/input/',
-          openshift_required_version: 1.1.0,
-        },
-        default: {
-          username: "{{ osbs_koji_stg_username }}",
-          password: "{{ osbs_koji_stg_password }}",
-          koji_use_kerberos: True,
-          koji_kerberos_keytab: "FILE:/etc/krb5.osbs_{{osbs_url}}.keytab",
-          koji_kerberos_principal: "osbs/{{osbs_url}}@{{ipa_realm}}",
-          openshift_url: 'https://{{osbs_url}}/',
-          registry_uri: 'https://{{docker_registry}}/v2',
-          source_registry_uri: 'https://{{source_registry}}/v2',
-          build_host: '{{osbs_url}}',
-          koji_root: 'https://{{koji_url}}/koji',
-          koji_hub: 'https://{{koji_url}}/kojihub',
-          sources_command: 'fedpkg sources',
-          build_type: 'prod',
-          authoritative_registry: 'registry.example.com',
-          vendor: 'Fedora Project',
-          verify_ssl: true,
-          use_auth: true,
-          builder_use_auth: true,
-          distribution_scope: 'private',
-          registry_api_versions: 'v2',
-          builder_openshift_url: 'https://{{osbs_url}}'
-        },
-      when: env == "staging"
-      }
-    - {
-      role: osbs-client,
-        general: {
-          verbose: 0,
-          build_json_dir: '/etc/osbs/input/',
-          openshift_required_version: 1.1.0,
-        },
-        default: {
-          username: "{{ osbs_koji_prod_username }}",
-          password: "{{ osbs_koji_prod_password }}",
-          koji_use_kerberos: True,
-          koji_kerberos_keytab: "FILE:/etc/krb5.osbs_{{osbs_url}}.keytab",
-          koji_kerberos_principal: "osbs/{{osbs_url}}@{{ipa_realm}}",
-          openshift_url: 'https://{{osbs_url}}/',
-          registry_uri: 'https://{{docker_registry}}/v2',
-          source_registry_uri: 'https://{{source_registry}}/v2',
-          build_host: '{{osbs_url}}',
-          koji_root: 'https://{{koji_url}}/koji',
-          koji_hub: 'https://{{koji_url}}/kojihub',
-          sources_command: 'fedpkg sources',
-          build_type: 'prod',
-          authoritative_registry: 'registry.example.com',
-          vendor: 'Fedora Project',
-          verify_ssl: true,
-          use_auth: true,
-          builder_use_auth: true,
-          distribution_scope: 'private',
-          registry_api_versions: 'v2',
-          builder_openshift_url: 'https://{{osbs_url}}'
-        },
-      when: env == "production"
-      }
-
   tasks:
     - name: copy docker iptables script
       copy: