Merge "Clean up rust_test_host TEST_MAPPING after default update" am: 1406677ddd am: 450bcb57ea am: af6ec6ee11 am: 7624a07df3

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/lazycell/+/1589996

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I8fe4ff8754d5a3fc4bdd2c13d10baafeffb133a9