Facebook is going to release the new timeline based profile for all its users in these days, so it’s not of much use though! but incase you activated the timeline on facebook by creating the application method then you can disable it again and revert to old facebook profile (until new timeline is implemented as default on facebook)
Follow these steps to disable / uninstall facebook timeline from your profile:
How to disable facebook timeline
1. Login to your facebook profile
2. goto facebook developer page: http://developer.facebook.com/apps
3. Select the app from the left menu which you created while activating the new facebook timeline feature
4. click “Edit App” from top right
5. on the edit app page, select “Delete app” from left menu (last link) and confirm delete
6. You’re done!
you’re now free from the new facebook timeline feature.