Should have something like drupal_remove_css

Like we've drupal_add_css() , there should be something like drupal_remove_css. An alternative way to module / theme developer to speed up by removing unnecessary css/js.

To Remove extra css code such as,

@import "/modules/node/node.css";
@import "/modules/system/defaults.css";
@import "/modules/system/system.css";
@import "/modules/user/user.css";

@import "/sites/all/modules/cck/content.css";
@import "/sites/all/modules/cck/fieldgroup.css";

@import "/themes/garland/style.css";

I'm not in favor that every custom developer should remove, but one should have option to remove it.