The libraries now are one, That is there is no Aperture library or iPhoto library it's just a library that either program can access.
So what you are seeing is correct.
BTE why did you delete iPhoto. The space you save deleting the App is minimal and having it could come in handy some day. Plus you already paid for it.
You're right. Just came across this: http://www.apertureexpert.com/tips/2012/6/16/understanding-the-iphoto-93-and-ape rture-33-unified-library.html
I deleted it because I wasn't sure if iPhoto and Aperture would play nice with each other, even though they're both Apple products.
See my UserTip:
If you have older iPhoto Libraries backed up somewhere, that have not yet been upgraded to iPhoto 9.3 or later you may need iPhoto one day, or if you want to browse two libraries at the same time.
If iPhoto came preinstalled on your computer or you bought it from the AppStore I'd reinstall it from the AppStore, while iPhoto '11 is still the current version.