private void deleteCallback() {
		// cancel any pending edits before deleting, as not to trigger explosions
		refsTable.editingCanceled(new ChangeEvent(refsTable));

		int[] selRows = refsTable.getSelectedRows();
		if (selRows.length != 0) {
			Reference[] refs = new Reference[selRows.length];
			for (int i = 0; i < selRows.length; i++) {
				refs[i] = tableModel.getReference(selRows[i]);
			}
			plugin.deleteReferences(currentProgram, refs);
		}
	}
Size the columns such that the interesting ones are wider than the
uninteresting columns.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/references/EditReferencesProvider.java