can.List.prototype.sortIndexes is defined but not referenced

[akagomez]

sortIndexes is defined here:

https://github.com/bitovi/canjs/blob/8425837c343efd6828bba1040bdabdd26ab96bea/map/sort/sort.js#L31

But a search yields only one result:

totes:canjs akagomez$ grep -rn "sortIndexes" .
./map/sort/sort.js:31:      sortIndexes: [],

It's possible that it's referenced using some funky string concatenation, but that seems unlikely to me since sort.js itself doesn't utilize it.

[justinbmeyer]

Is this an issue to remove that definition? If so, and removing it causes no tests to fail, please remove it. Thanks!