Deinstalling Cluster base Grid Control Agents

To remove grid control agents from a clustered configuration or standalone database use

/opt/app/oracle/grid_agent/agent11g/oui/bin/runInstaller -deinstall -silent "REMOVE_HOMES={/opt/app/oracle/grid_agent/agent11g}" -removeallfiles
Starting Oracle Universal Installer...

Checking swap space: must be greater than 500 MB.   Actual 4094 MB    Passed
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2012-02-09_12-46-19PM. Please wait ...[oracle@rac1 bin]$ Oracle Universal Installer, Version 11.1.0.8.0 Production
Copyright (C) 1999, 2010, Oracle. All rights reserved.

Starting deinstall

Deinstall in progress (Thursday, February 9, 2012 12:47:08 PM GMT)
Configuration assistant "Agent Deinstall Assistant" succeeded
Configuration assistant "Oracle Configuration Manager Deinstall" succeeded
............................................................... 100% Done.

Deinstall successful
Removing Cluster Oracle homes

This would remove agent installations from all the nodes in the cluster.