Deleting segments during alignment

I'm about to align two files (via "Align Documents") and just discovered that they contain (corresponding source and target) segments that I would like to delete. Most segment pairs are identical (same content, same language: English), containing comments that were not translated and hence need not be aligned. I'm concerned only with the corresponding source and target segments that have been translated from English to German. Is it possible to delete (the identical) segments during the alignment process? If yes, how?