Update rdflib/plugins/sparql/algebra.py
Update rdflib/plugins/sparql/algebra.py

removing logging

Co-authored-by: Iwan Aucamp <9e0997e514d2c9142ff540255e89ad86035620fe@gmail.com>
RDFLib/rdflib,RDFLib/rdflib,RDFLib/rdflib,RDFLib/rdflib