I've made a simple node for Houdini Indie that deletes select nodes or networks and optionally checks the hip filename for the presence of the string to prevent the node from deleting networks in the wrong file.
This node is particularly useful when you want to send a copy of your hip file to the cloud and clean it from unnecessary stages or nodes that require Python scripts or other package dependencies that your cloud service may not have.
You can download the Nodes Remover HDA from my GitHub page