Revert "Deprecate tools::countActiveValues() in place of tools::countActiveVoxels()"
Revert "Deprecate tools::countActiveValues() in place of tools::countActiveVoxels()"

This reverts commit 2d009a78fe171456c52c3486f7faac4b63e105b2.

Signed-off-by: Dan Bailey <39b6ae1dd30d9ab3cd77a2d084b277520f14c203@ilm.com>

dreamworksanimation/openvdb,dreamworksanimation/openvdb,dreamworksanimation/openvdb,dreamworksanimation/openvdb