Delete a stoke outline shape

Version: Adobe Illustrator CS5.1

Hi!

So could someone help me with a little problem.

I created a logo using a font then converted it to an object. The font wasn't thin enough!

I then added a white stroke to get the font/ shape to the right thickness, now I need to start using the logo for other stuff and creating white versions so I need to delete the stoke outline so it cuts the shape to the needed size.

Thanks in advance