I define chivalry as simple common courtesy, specifically from a man to a woman. For instance, having a man hold the door for me, offer to buy my coffee, opening the car door for me, etc.
Does that make me less of a strong, independent woman? Of course not. I find chivalry very sweet and flattering. It shows that a man is genuinely interested in taking care of my needs. It shows that the man is loving, kind, compassionate, sweet, and generous. I certainly don't feel any less of a woman when I encounter chivalry. As a matter of fact I feel more respected. Here is a man who doesn't know a thing about me but because of my smile or outgoing and graceful deportment he ~wants~ to help me, he wants to do something nice for me.
The feminine movement has not had any affect on chivalry. I encounter it (chivalry ) daily. From men I am aquainted with and total strangers. I think what does affect chivalrous behavior is the attitude of women. If a man encounters a woman who has a nasty attitude (sometimes foul mouth) and is bitter, he will probably run the other way- even if she is a "hottie." If a man encounters a woman who has a warm personality and sends off positive vibes, he will probably want to be chivalrous toward her simply because she makes him feel comfortable.
Also, if a man has had a bad experience (or experiences) with women, he may himself be bitter and think it's not worth trying anymore. Then other women see this and wonder, "Where the heck has chivalry gone?" Nice trickle effect, hmmm?
Common courtesy. Both men and women could learn something from that. In my experience I have yet to meet a man who has told me that he was thrilled to go out of his way for a negative, bitter woman.
No, feminism has not killed chivalry, but a surly attitude will!
I hope this helps you. :)