private void deleteEmptyFolder(DomainFolder folder) {
		if (folder.isEmpty()) {
			try {
				folder.delete();
			}
			catch (IOException e) {
				Msg.error(this, "Unexpected error deleting empty folder: " + folder.getName(), e);
			}
		}
	}
Construct a new DeleteProjectFilesTask with the list of folders and files to delete.

@param folders the fist of DomainFolders (and all files contained recursively 
in those folders) to delete
@param files the list of DomainFiles to delete
@param fileCount the number of files being deleted
@param parent the component to use for parenting any dialogs that are shown
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/projectdata/actions/DeleteProjectFilesTask.java