This is no longer required, its been carried over for a long time. As a
side effect it helps compiling ccache with clang
(From OE-Core rev: f8d3122e9d194aa7fdf5c4c645edfcc7fdcb9ccc)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>