Revert "frameworks/av: Fix build in ISO C++ 11 mode"

This reverts commit 86c19004458854cafb3ad650aaf4407c2265936e.
Revert "av: More ISO C++ 11 fixes"

This reverts commit 4731acf4e90bb071e38e17b7f7895df12d4306e6.
Revert "av: Fix build in ISO C++11 mode"

This reverts commit 11043529ee331756c58e56c88f92266bd7087edf.