Revert "external/boringssl: Sync to 3989c99706bf30054798ff82f1cb010e50e385f5."

This reverts commit 92a0f790a5c96b3f6e0516a20aca2222459be9cd.

Reason for revert: Breaks tests in postsubmit: b/170610462

Change-Id: I728ca3ccefda48c2f379747a9b8a68d45ca7854b
58 files changed