This is needed for Bio::Index objects and classes that descend
from it for the creation of index files.

This module was split out of the main bioperl distribution in
version 1.7.3 (https://metacpan.org/dist/BioPerl/changes), but
is still needed by Prokka (bioconda#33356).

Now that Bio::SearchIO::hmmer is packaged, we can use it as part
of the latest bioperl distribution and there's no longer a need
for this pinning.

This reverts the workaround a32603c
in favor of resolving the underlying problem.

…-hmmer

I meant to use the program 'true', but yaml interpreted it as a bool
without the quotes.