Remove use of legacy layers from TransactionApplicationTest

Legacy layers are no longer used in production, this
changes the unit tests to use requestedlayerstate
directly.

Flag: EXEMPT removing flagged code
Test: presubmit
Bug: 330785038
Change-Id: I50e3a5e15d9b97ec04e49af2b6b4aab77ed17e7a
2 files changed