@Override
		public void actionPerformed(ActionContext context) {
			boolean show = !listingPanel.isHeaderShowing();
			listingPanel.showHeader(show);
			getToolBarData()
					.setIcon(show ? LISTING_FORMAT_COLLAPSE_ICON : LISTING_FORMAT_EXPAND_ICON);
		}
Remove the {@link AddressSetDisplayListener} from the listing panel

@param listener the listener to remove
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/codebrowser/CodeViewerProvider.java