stgit: command to remove file from patch

Hi, 

Is there a command to remove a file from a patch in stgit? I mean, something like "quilt remove". 

I searched a lot but I couldn't find any. 

If such a command is not available, is there an easy way to achieve this by other means. I tried this by changing the git commit and using "stg repair". That didn't work for me.

I would like to propose "stg remove" to be placed very high on stgit wish-list. 

Thanks,
Aneesh