I'd remove noindex tags on your own pages since it won't change their evaluation one way or another. Google knows about the pages even if you don't want them indexed and they are more concerned with what they are sending a visitor to in general.
There was some suggestion after Panda 1.0 that "low quality" pages be removed or noindexed. I've noindexed about a dozen pages on my site, but I am wondering in retrospect if I made matters worse. The pages are still followable, but just noindex.