resolves #43: removed unused NamedTuple

nd2reader/parser.py

@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
 
 import array
-from collections import namedtuple
 from datetime import datetime
 import numpy as np
 import re
@@ -9,9 +8,6 @@ import struct
 from StringIO import StringIO
 
 
-field_of_view = namedtuple('FOV', ['number', 'x', 'y', 'z', 'pfs_offset'])
-
-
 class Nd2Parser(object):
     """
     Reads .nd2 files, provides an interface to the metadata, and generates numpy arrays from the image data.