Cleanup license metadata in external/rust/crates/googletest. am: 030188bb2a

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/googletest/+/3205706

Change-Id: I968ab96192fb97ec38a231f3e9cf23c7e36aff6a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>