When developing applications

[eluser]garymardell[/eluser]
EDIT: As this application will just be his, he wont lose anything. Apart from maybe a small amount of time. It also won't take long to delete some of the files in the libraries folder (which would be the majority i guess of the useless 'bloat').

I guess it all depends on what kind of app it is. If it is something written for say CI developers then just include the additional files.

However for a application to a member of public i recommend the whole folder, but remove the unnecessary files. If you are not using it in your app just don't give it to the user. There are many libraries that you just won't use so there is no harm in removing them.