Only sort of. Content that had been supplied by another dev for the purpose of a crossover, which he insisted be removed, and claimed as his exclusive intellectual property was removed. So there is no longer a meeting between the two main girls of that game with Nicky and Mei in the bathroom, and the character Rena had to be removed and replaced with another because we were going to need to use a niece character for Jensen again to continue our story.
However, Jessie, Jensen's sister, is still in this game, still a shrink, and still is the mother of Jensen's niece - it's simply that niece is no longer someone else's creation that they revoked permission to use. You may also find that a lady shopping for lingerie looks very familiar. I honestly can't (not won't, but can't) tell you what the problem was for the other dev, but it took considerable work to go back through previously completed chapters removing not just the niece character herself, but also every use of the family photos in the background, and replacing them with Andi (Andrea).
However, while that was a lot of stress and upset that I assure you MrKnobb didn't deserve, didn't cause, and doesn't really want to continually be reminded of, it did really have an up-side. For a start, Andrea herself is (to my mind) actually even hotter, and has a much better personality, so the 're-casting' worked out well for players and for the story both. It also made us more thankful of the other devs who act responsibly, respectfully, and helpfully, and with whom we have greatly enjoyed our crossover scenes and giving our little nods of appreciation where we can.
AFAIK the actual 'Battle of the Bands' scene and event itself was completely removed from AL, and so is no longer a crossover. The characters from the other game were never there and it never happened...