Have you read
The Ghost from the Grand Banks by Arther C. Clarke? In there two of the characters have a job removing cigarettes and smoke from old movies. When I first read the book I found it funny ... but I gave up smoking 3 years, 11 months, 26 days and 2 hours ago now (but who's counting?

) and people lighting up in movies are definitely a trigger signal for me to start craving again - so now removing cigarettes from movies seems like a great idea!
I can't say I've noticed much about smoking in books, I've never noticed it as a trigger for my own craving. Mostly it seems to be just scene setting, like the light level and background noises and stuff. I seem to have managed to avoid it as a bad boy flag.