@Override
		public boolean remove() throws ConcurrentModificationException {
			boolean removed;
			if (setModificationNumber != getModificationNumber()) {
				throw new ConcurrentModificationException("Set Modified");
			}
			removed = VertexSet.this.remove(getByIndex(currentPosition));
			setModificationNumber = getModificationNumber();
			return removed;
		}
Remove the vertex returned by the most recent call to next().
Ghidra/Framework/Generic/src/main/java/ghidra/util/graph/VertexSet.java