Leave it.....unless it just bugs you. In wide-limbed bows, twist bugs me, but on most narrow and sapling bows I can leave it be.
If you want to take it out, BL responds to heat pretty well. Work the bow down toward a good beginning thickness, say 5/8" or 3/4", whatever, then heat treat the whole thing, good and deep, leaving the whole thing clamped until well cooled and rest it a bit past that.