The same could be said the other way around though. If you’re going to change TLJ to be in line with TROS, you’ll have to remove:
- Everything with Rey, as it all revolves around her learning that her parents were nobody.
- Everything with Kylo, as it’s all about him shaking off the past influences of the Jedi and Sith, and stepping out from the shadow of his Master…until he accepts Palpy as his master and takes the Sith Fleet.
- Everything with Poe, as it’s all about him learning to become a leader…until he abandons his forces 16 hours before Doomsday in order to shuttle Rey across the galaxy on a scavenger hunt.
- Everything with Rose, because “She’s not important. Lol what are you talking about?”
- I guess you can keep the Finn stuff, because his complete lack of any characterization in TROS arguably doesn’t contradict what he did in TLJ?
Thing is, I don’t share those opinions on what you should be removing from TLJ to make it more in line with TROS. I already rambled a little too much about why I think Kylo’s arc in TLJ actually lines up with TROS. I could argue against the rest of those as well, but quite frankly this isn’t the place for that (and who is going to bother reading it anyways).