Remove dependency on jniGetNonMovableArrayElements.

Summary:
jniGetNonMovableArrayElements is not safe and is going to be deleted.

Change-Id: I6daae1e4ac9e01ca593cda522fdbeb774eef1eff
(cherry picked from commit 75a5038849cecf38aba72721272ff07cca09501f)

Test Plan: merge, we need this for libnativehelper upstream commits

Reviewers: synergy

Reviewed By: synergy

Differential Revision: http://review.codefirex.com/D636