You can uninstall individual components, all components, or completely remove Edge from your system. In addition, you can roll back Edge if you upgraded.
Uninstall individual components
To uninstall a component, use the apigee-service utility in the form:
/opt/apigee/apigee-service/bin/apigee-service component_name uninstall
Where component_name identifies the component you want to uninstall. The possible values of component_name include the following:
- apigee-cassandra(Cassandra)
- apigee-openldap(OpenLDAP)
- apigee-postgresql(PostgreSQL database)
- apigee-qpidd(Qpidd)
- apigee-sso(Edge SSO)
- apigee-zookeeper(ZooKeeper)
- edge-management-server(Management Server)
- edge-management-ui(new Edge UI)
- edge-message-processor(Message Processor)
- edge-postgres-server(Postgres Server)
- edge-qpid-server(Qpid Server)
- edge-router(Edge Router)
- edge-ui(Classic UI)
In addition to these components, you can also uninstall the apigee-provision and
  apigee-validate components.
For example, to uninstall the Edge UI:
/opt/apigee/apigee-service/bin/apigee-service edge-ui uninstall
This command does not delete any data or log files. It only deletes the component.
Uninstall all components
To uninstall all Apigee components on the node, uninstall the apigee-service
  utility:
/opt/apigee/apigee-service/bin/apigee-service apigee-service uninstall
This command does not delete any data or log files. It only deletes the components.
Remove Edge
To completely remove Edge from your system:
- Stop all Edge services running on the machine:
      /opt/apigee/apigee-service/bin/apigee-all stop 
- Clear the yum cache:
      sudo yum clean all 
- Remove all the Apigee RPMs:
      sudo rpm -e $(rpm -qa | egrep "(apigee-|edge-)") 
- Remove the installation root directory:
      sudo rm -rf /opt/apigee 
- Remove the Nginx directory:
      sudo rm -rf /opt/nginx