removing removed depdendency "git"

vsoch · vsoch · commit dd690f03985d · 2017-01-14T12:00:34.000-08:00
diff --git a/singularity/utils.py b/singularity/utils.py
@@ -6,7 +6,6 @@
 '''
 
 import collections
-from git import Repo
 import os
 import re
 import requests
