@Override
				protected void toggleSelectionListening(boolean listen) {
					super.toggleSelectionListening(listen);
					refProvider.getTable().setNavigateOnSelectionEnabled(listen);
				}
Tells a plugin that it is no longer needed.
The plugin should remove itself from anything that
it is registered to and release any resources.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/symtable/SymbolTablePlugin.java