Revert "simpleperf: don't hide art jni methods."

This reverts commit e14e914555b76ca6e314d79f0609983eaadfc068.

Bug: 175226454
Test: run simpleperf_unit_test.
Change-Id: Iaa3fd07718b0aca727f1cb1aa3a1fe5b1159c7f0
5 files changed