Updated test since we don't have B^2n anymore

Author: lizliz

tests/test_interleaving.py

@@ -17,7 +17,7 @@ def test_torus_line(self):
         #--- B ---# 
 
         for H, graph in [(myAssgn.F, 'F'), (myAssgn.G, 'G')]: 
-            for key in ['0', 'n', '2n']:
+            for key in ['0', 'n']:
                 mygraph = H(key)
 
                 rows_ = mygraph.sorted_vertices()