Remove unused imports in docs
Remove unused imports in docs

johnbachman/indra,johnbachman/belpy,johnbachman/belpy,bgyori/indra,sorgerlab/belpy,sorgerlab/belpy,bgyori/indra,sorgerlab/indra,johnbachman/belpy,johnbachman/indra,sorgerlab/indra,bgyori/indra,johnbachman/indra,sorgerlab/belpy,sorgerlab/indra