Remove libservicestestsjni

frameworks/base/services/tests/servicestests/jni no longer exists
after I993eeaa5dec001c39389023f355f506129b356e7, remove it.

Test: m -j FrameworksServicesTests
Change-Id: I8f307373aede9e749f1b992dde0f7252bf74b065
2 files changed