libctest: zap

Related Changes:
- https://android-review.googlesource.com/#/c/95364
- https://googleplex-android-review.git.corp.google.com/#/c/470584
- https://googleplex-android-review.git.corp.google.com/#/c/470591
- https://googleplex-android-review.git.corp.google.com/#/c/470590

Change-Id: I28a017104f48cc4216df876eb9102ecd332d28e3
3 files changed