Removing an evil male robot voiced by Tim Curry (granted, it wasn't very popular and it was out of place in the Magic Kingdom, but STILL.) At least we still have an evil male robot in that same land... voiced by Ken Mitchroney...
Removing Body Wars. That may as well have been David Hayter's first acting role (if it weren't a woman...) I understand the simulation was rough, but they could've updated it to include newer scenes (and add David Hayter as the patient if it actually WERE a woman, given David was attractive round 2007.)
Removing DINOSAUR. I know many could only think of "ARARARARARA" when the Carnotaurus came up, but for those who weren't familiar with Hanna-Barbera, it was a great ride even if the effects weren't always working.
Removing the Great Movie Ride. It was the flagship ride of the entire park! I only think they did it because of the Alien scene. (Relating to the first part of this post.) Also, making C-3PO the pilot on the new Star Tours instead of RX-24, and regulating him to a defective droid in the queue. Hot take here, but I'm not really fond of R-3X. I mainly like pilot droid RX-24. Imagine his reaction to Boba Fett in the Geonosis scene...
Removing Tough to be a Bug. I actually like it (mainly because of the idea of screaming "SPIIIIIDERS SPIDERS GET THEM OFF OF ME" during the spiders scene... IYKYK), and I like A Bug's Life too. I really want them to still have representation in the parks. They're the most underrated Pixar characters, especially because they were some of the first besides Toy Story and their movie has never gotten a sequel (YES, I KNOW UP AND WALL-E NEVER GOT SEQUELS EITHER.)
(I know DINOSAUR and TTBAB haven't closed, yet, but someone mentioned the Muppets retheme of RNRC so...)