Update nqueens.py

Author: Dimosts

pycona/benchmarks/nqueens.py

@@ -3,8 +3,6 @@
 from ..answering_queries.constraint_oracle import ConstraintOracle
 from ..problem_instance import ProblemInstance, absvar
 
-
-
 def construct_nqueens_problem(n):
 
     parameters = {"n": n}