How to delete individual OCR text-areas?

Some of the things that Adobe's OCR thinks are text are not text. The only way I've found to make this less bad, when all text on a page is read aloud by TTS, is to "Review recognized text" (via the "Correct recongized text" feature) and replace whatever the OCR thought was there with a space (i.e. using the spacebar).

Is there any way to just let Acrobat know that there isn't actually any text there?