public void delete() throws IOException {
		fileDataTypeManager.removeDataTypeManagerListener(categoryListener);
		fileDataTypeManager.delete();
		archiveManager.archiveClosed(this);
		fileDataTypeManager = null;
	}
Manages a DataTypeFileManager and relative state.  For example, whether the manager is writable
or whether changes have been made.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/FileArchive.java