Let them grow out of it themselves. The buds aren't big enough yet to worry much about mold and mildew, so the plants should grow pretty well and drop the damaged leaves in a few weeks. If the buds were huge, I might cut them because the dead and burnt vegitation can get moldy. Since it is still fairly younng, you shouldn't have any problems. Keep an eye on it and pick away any dead pieces that you can see and are crispy.