The following probes can be deactivated or deleted and/or not mirrored on the HA failover node as most customers do not use them. If you are using fault_correlation, you would normally be aware of it.
Deactivate the probes:
Save off the probe directories in case they are needed in the future.
Rt-click and delete those probes.
Remove the probe directories from both the Primary and HA machines.
Adjust the HA.cfg and remove the probes from the startup configuration.
Acknowledge any related alarms.
You can choose to stop the robot and remove the controller.cfg sections pertaining to the 3 probes listed above as well.
Then Activate the robot again.