      is specified.
      """
      if timezone is None:
          timezone = get_current_timezone()
      value = value.astimezone(timezone)
      if hasattr(timezone, 'normalize'):
          # This method is available for pytz time zones.
          value = timezone.normalize(value)
 
</s> remove         # available for pytz time zones
 </s> add         # This method is available for pytz time zones. </s> remove         # available for pytz time zones
 </s> add         # This method is available for pytz time zones. </s> remove     if is_naive(value):
        raise ValueError("make_naive expects an aware value, got %s" % value)
 </s> add     # If `value` is naive, astimezone() will raise a ValueError,
    # so we don't need to perform a redundant check. </s> remove         # available for pytz time zones
 </s> add         # This method is available for pytz time zones.
    # If `value` is naive, astimezone() will raise a ValueError,
    # so we don't need to perform a redundant check.
      is specified.
      """
      if timezone is None:
          timezone = get_current_timezone()
    # If `value` is naive, astimezone() will raise a ValueError,
    # so we don't need to perform a redundant check.
      value = value.astimezone(timezone)
      if hasattr(timezone, 'normalize'):
          # This method is available for pytz time zones.
          value = timezone.normalize(value)
keep keep keep add keep keep keep keep
 Optimized make_aware/naive by removing redundant checks. Refs #22625.

Also added tests with pytz and removed misplaced tests. 
django/utils/timezone.py