fix(create_session): remove redundant debug message
fix(create_session): remove redundant debug message

This debug message was not removed mistakenly.
Also if 'auth_provider' is None, it will fail

scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests