Revert "Set SOONG_NINJA=siso on trunk_staging"

This reverts commit f8e5d713ebfb99449525faac67010548849f5fc7.

Reason for revert: Reverting while we work identified issues.

Bug: b/448787300
Change-Id: Ifd243635a6bb71995759d7b3459cc5859422b0ff
1 file changed