LOCAL_CLANG := true is now the default

Test: verify that build has no failures
Change-Id: Ib249b276c6295e55eb54fa37b6d15486415dfbed
Merged-In: Ib249b276c6295e55eb54fa37b6d15486415dfbed
(cherry picked from commit 5f5ee1110dd85001b43db7637a97474acfe8d681)
48 files changed