public void removeEventListener(Class<? extends PluginEvent> eventClass,
			PluginEventListener listener) {
		Set<PluginEventListener> set = listenersByEventType.get(eventClass);
		set.remove(listener);
		if (set.isEmpty()) {
			eventConsumerRemoved(eventClass);
		}
	}
Remove the plugin event listener from the list of listeners notified when an event of the
given event class is generated.

@param eventClass class of the event of interest
@param listener listener to remove
Ghidra/Framework/Project/src/main/java/ghidra/framework/plugintool/mgr/EventManager.java