Revert "Revert "Remove unused clang-3859424""

This reverts commit a9746aefba880191bc342562ac7570d39dc87c2d.

Reason for revert: b/78535188 - these prebuilts can now be removed.

Change-Id: Ifd055702c1256293fe8a0d94ac578e19d1e1d538
228 files changed