With this, we can drop the old 1.4.0 patches for 8.4 support, since
those are now upstream.
Furthermore, SAPIC Is now bundled inside Tamarin, so we can drop the
external dependency. (This includes a patch that compiles SAPIC to
native code, much like the original, to reduce closure size.)
Signed-off-by: Austin Seipp <aseipp@pobox.com>
