That spring goes between the door frame and the lever at the bottom of the hinge. You need a door spring compressor tool to compress the spring and jam it back in there.
In the meantime, as /u/bitshoptyler said, just push the lever away from the pin and you can close the door.
I had the same issue with the broken hinge bushing and the wind noise, plus water coming in through the seam. I got a hinge kit and hinge spring compression tool off Amazon and it made all of the difference. Wind noise completely gone and the door swings and shuts like new. The fix itself is fairly simple but it helps to have an extra set of hands. I think most people don't seem to know how heavy a vehicle door really is until you're wrestling one by yourself like I did.
Here is the tool You will need to remove the spring so the hinge pin can drop out.
Here is the hinge kit
Just noticed how old this post is but responding anyway since I already typed it up.