Revert "Deduplicate inv_txfm_cfg_ls array"

This reverts commit 15ad8e4e3ffc09318e86f3369d301f584f53ecbf.

Reason for revert: Merge Conflict with https://aomedia-review.googlesource.com/c/11181/

BUG=https://bugs.chromium.org/p/aomedia/issues/detail?id=502

Change-Id: I6e7bb8f1a5a2f2d5ff09246c3932e41414a69047
1 file changed