Removing a pull...

[Era Scarecrow]

 Currently since I've been concentrating more on bitfields and 
BitArray needs more work, the two separate patches and trees are 
out of sync and apparently the auto-tester brings them up as a 
fail. How do I remove one of the pulls so I can concentrate on 
the one set of features and continue the others later?

 (Course I could just update what I have for BitArray so it works 
as a value-type for now too...)