Flip off SPLIT_SHADE_SUBPIXEL_OPTIMIZATION flag

it seems it might cause an additional shade measure after unfold. Reverting for now.

Change-Id: I73968b13b7d354dbcabb3b03e42f2ad2e2f141cc
Flag: None
Bug: 277201412
Bug: 306178311
Test: presubmits
1 file changed