Revert "DO NOT MERGE: Use -Werror in system/libufdt/tests/src."

This reverts commit 662c5b31f4197c7121945ec6a304729ac2e4124f.
Exempt-From-Owner-Approval: to fix broken build sdk_mac
Change-Id: Ib8985f653895ab5573ba17c083b77f00a5bb78ee
1 file changed