Drop cleanup step from `conda-build` recipe.
Drop cleanup step from `conda-build` recipe.

As `conda-build` will handle cleanup anyways, there is no need for us to
do any cleanup after the build ourselves. Plus this step seems to be
running into issues for whatever reason. Thus we drop this unneeded
step.

DudLab/rank_filter,jakirkham/rank_filter,nanshe-org/rank_filter,DudLab/rank_filter,jakirkham/rank_filter,nanshe-org/rank_filter,DudLab/rank_filter,nanshe-org/rank_filter,jakirkham/rank_filter