changed default lines

src/obstacle_test.py

@@ -121,7 +121,7 @@ if __name__ == '__main__':
     #([m,b],lower bound for x, upper bound for x)
     #where the line is defined by y=mx+b, but only exists when x is between
     #the lower and upper bounds.
-    wall_lines = [ ([-1.5,100],-500,500),([-0.5,200],-500,500)]
+    wall_lines = [ ([-1.5,100],-500,500)]
 
     try:
         distance_publisher()