Revert "Initial support for adding virtuals with structural redefinition"

This reverts commit 283bb322de84ac570b987c65a1015e2dbcbfad7c.

Reason for revert: Test flakes

Bug: 134162467
Bug: 144168550
Bug: 144590579
Change-Id: I2259c030f03a72f6b7bcda10288bd23cb3258164
36 files changed