This is the result of running the command:
$ find . -name '*.idr' -type f -exec sed -i -E 's/\s+$//' {} +
I confirmed before running it that this would not affect any markdown
formatting in documentation comments.
This means that even if the relevant parameters aren't used by a method
body, the method can still see what the implicits are (though they will
be 0 multiplicity).
This is relevant to #8, but doesn't really fix it because we still need
a way of saying that methods are 0 multiplicity.