I deleted one of my results during my last rehearsal since I thought it was
too time consuming to explain it, but the result was already stated in the
abstract. During the talk, no one noticed it was not talked about.
But before the talk, when I met with one of the professors, he said he was
interested in that result and would like to listen to it during the talk....
I told him that I would not talk about it since it is too hard to be
understood but I would like to discuss with him individually. So it is
completely fine. :)