First of all, if the line you've cited actually includes "remove u" (you put the quote in quotation marks, so I'm assuming that's the actual line) then I can guarantee that Buk didn't write it. If you were looking to save 3/5ths of a second (yes, that's a Jefferson Airplane reference) of your life by not typing "you" then I have no interest in helping you. We deal with real language here; not "phone text/speak."
That said, I've read almost every poem Buk ever wrote and I don't recall that particular line and I think that it would have stood out to me. But I can't claim knowledge/remembrance of every line.