Fix incorrect assertion in builder.py
Hi ! The SplitInfo is not always available. By default you would get `split_info.num_examples == 0`
So unfortunately we can't use this assertion you suggested > Hi ! The SplitInfo is not always available. By default you would get `split_info.num_examples == 0`
> So unfortunately we can't use this assertion you suggested

Then it would be better to just remove the assertion, because the existing assertion does nothing.
Fix incorrect num_examples comparison assertion in builder.py