ChainsawAsh said:

What are you talking about? There's a whole deleted sequence with C-3PO letting wampas loose in the base during the attack. And there's the additional Dagobah training sequences, with Luke training with his lightsaber while Yoda coaches on his back.

I'm sure there are more, but those are the two that come to mind immediately.

i remember reading about those scenes in the novelization, but i didn't know they were deleted scenes.

And yea, C3PO ripping the sign off the door i think was in the original trailer for the movie.