message: remove unnecessary check
  see
diff: @@ -387,9 +387,6 @@ export namespace Mesh {
  function createValues(mesh: Mesh, transform: TransformData, locationIt: LocationIterator, theme: Theme, props: PD.Values<Params>): MeshValues {
  const { instanceCount, groupCount } = locationIt;
  - if (instanceCount !== transform.instanceCount.ref.value) {
  - throw new Error('instanceCount values in TransformData and LocationIterator differ');
  - }
  const positionIt = createPositionIterator(mesh, transform);
  const color = createColors(locationIt, positionIt, theme.color);
  