TEMP:  switch to fresh AOSP bionic with pertinent commits rebased

if we're going to start fresh on 4.4.. lets actually start fresh.  First, We don't know if
the commits we've clogged up our bionic with are even pertinent anymore since some are quite old
and android has moved to glibc compatibility.  We can readd them after testing accordingly.  Second,
since they were written before a major upstream revision was released from internal we don't know
if they will cause any issues.  This also fixes the build from crashing on missing string.h definitions.

Change-Id: Id469d23084f6b999427b4052caf40abeaa5e36b3