The macro in the trailers module existed since there were multiple
trailers before the refactoring, so it minimised boilerplate code.
After the refactoring of the code there was only one trailer
left. Remove the macro generation code and replace it with just the
necessary code for the ResourceCommitTrailer.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett