Pawel Kozlowski dd69e4e780 refactor(ivy): remove duplicated flatten util (#29547)
This commit removes code duplication where we had 2 versions of a
`flatten` utility. Moreover this change results in queries using
a non-recursive version of `flatten` which should result in a better
performance of query refresh operations.

PR Close #29547
2019-03-27 12:36:23 -07:00
..