DRY: Remove unused createNPPixArrayDist.

[WillieMaddox]

This function is also a copy of createDistanceTransform.

[dlindenbaum]

@WillieMaddox

Thank you for the pull request.

We still use that command in a couple of other places. Is it possible to instead push a change that prints that The function will be deprecated in the next release and then call the createDistanceTransform from inside?

Thank you,

[WillieMaddox]

That's strange. When I do,
grep -ir createNPPixArrayDist
I only see it in one place,
utilities/python/spaceNetUtilities/labelTools.py:def createNPPixArrayDist(rasterSrc, vectorSrc, npDistFileName='', units='pixels'):
In any case, I'll submit another PR with the deprecation notice and redirect.