Fix some "errors" found by pyflakes

pygit2/__init__.py

@@ -35,7 +35,6 @@ from _pygit2 import *
 # High level API
 from .repository import Repository
 from .version import __version__
-import pygit2.utils
 
 
 def init_repository(path, bare=False):

pygit2/utils.py

@@ -1,29 +0,0 @@
-# -*- coding: utf-8 -*-
-#
-# Copyright 2010-2013 The pygit2 contributors
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License, version 2,
-# as published by the Free Software Foundation.
-#
-# In addition to the permissions in the GNU General Public License,
-# the authors give you unlimited permission to link the compiled
-# version of this file into combinations with other programs,
-# and to distribute those combinations without any restriction
-# coming from the use of this file.  (The General Public License
-# restrictions do apply in other respects; for example, they cover
-# modification of the file, and distribution when not linked into
-# a combined executable.)
-#
-# This file is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; see the file COPYING.  If not, write to
-# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-# Boston, MA 02110-1301, USA.
-
-
-# feel free to add utils functions here

test/utils.py

@@ -27,7 +27,6 @@
 
 """Test utilities for libgit2."""
 
-from binascii import b2a_hex
 import sys
 import os
 import shutil