Remove run block in heapq

Author: donBarbos

Lib/heapq.py

@@ -595,9 +595,3 @@ def nlargest(n, iterable, key=None):
     from _heapq import _heappop_max
 except ImportError:
     pass
-
-
-if __name__ == "__main__":
-
-    import doctest # pragma: no cover
-    print(doctest.testmod()) # pragma: no cover