Legolas and Tauriel. Another unfortunate addition by Jackson that cannot be removed entirely. They make a brief appearance in Mirkwood when they arrest the dwarves, and are briefly in the orc skirmish during the barrel chase. Every other scene with them in DOS is gone.
The barrel chase has been heavily cut. No more Bombur rolling all over orcs or Legolas tap dancing on the dwarves heads
Laketown scenes have been cut or trimmed, especially regarding Alfrid (can’t wait to cut his scenes in the third film!)
Bilbo’s encounter with Smaug is pretty much untouched. This was one of the high points of the Hobbit films.
Smaug playing hide and seek with the dwarves is gone, along with the dwarves lighting the furnaces and throwing flashbangs at Smaug’s head. Dumb.
The gold dwarf statue is still there. This is because there needs to be a reason why Smaug is covered in gold when he breaks out of Erebor. So I’ve basically trimmed the molten gold stuff down to what is absolutely needed to explain everything. No more Thorin surfing a gilded river though!