Eli, you shouldn't be cutting any of it at this stage! Turn off your inner editor and write write write! There are some really good tips and tricks on the forum when it calms down on there. One woman was saying that in order to turn off her inner editor she allows herself to use brackets, (I like these ones []) to write notes e.g. [cliched] or [think of a better word] or [something about the spark going].
I guess there are two things really: getting your 50,000 words, uploading to the site and being an offical 'winner', getting a certificate and having it as part of your profile, and there is having fun and getting a novel written. It's not in your interest to 'cheat' otherwise you won't have gained anything, but notes and character development aren't cheating, they are part of the work on your novel.
Ooh, one other tip, try and aim to finish by 28th or so and get uploading, coz the site goes mad and if you don't get to upload by the date then you don't 'win', so if you are nearing the end and you know you are going to finish by the 30th but still have a few thousand words to go then just copy and paste some stuff or notes or something. It's not cheating, you know you are going to finish, but you need to get your words verified.