Undefine ALIGN macro before libdonna uses it
Undefine ALIGN macro before libdonna uses it

See
https://github.com/josh-ripple/ed25519-donna/commit/e1e5a55a6b2cede036f4e7d9dd3526864a262312

lavabit/libdime,lavabit/libdime,lavabit/libdime,lavabit/libdime