Remove testing function

more_itertools/more.py

@@ -378,19 +378,6 @@ def ilen(iterable):
     return d[0][0] if d else 0
 
 
-def ilen_2(iterable):
-    """Return the number of items in ``iterable``.
-
-        >>> ilen(x for x in range(1000000) if x % 3 == 0)
-        333334
-
-    This does, of course, consume the iterable, so handle it with care.
-
-    """
-    d = deque(enumerate(iterable, 1), maxlen=1)
-    return d[0][0] if d else 0
-
-
 def iterate(func, start):
     """Return ``start``, ``func(start)``, ``func(func(start))``, ...