Fix per-file owners check for deleted files.

git_cl.py

Index: git_cl.py
diff --git a/git_cl.py b/git_cl.py
index 70d7e18c9a58f658c0c21462a92c76049e3a3830..6a59cda52b9aa21facb9041e22bd9b86135569a7 100755
--- a/git_cl.py
+++ b/git_cl.py
@@ -13,7 +13,6 @@ from distutils.version import LooseVersion
 from multiprocessing.pool import ThreadPool
 import base64
 import collections
-import glob
 import httplib
 import json
 import logging
@@ -2721,7 +2720,7 @@ class ChangeDescription(object):
         reviewers.append(name)
     if add_owners_tbr:
       owners_db = owners.Database(change.RepositoryRoot(),
-        fopen=file, os_path=os.path, glob=glob.glob)
+        fopen=file, os_path=os.path)
       all_reviewers = set(tbr_names + reviewers)
       missing_files = owners_db.files_not_covered_by(change.LocalPaths(),
                                                      all_reviewers)
@@ -4841,7 +4840,7 @@ def CMDowners(parser, args):
       [f.LocalPath() for f in
           cl.GetChange(base_branch, None).AffectedFiles()],
       change.RepositoryRoot(), author,
-      fopen=file, os_path=os.path, glob=glob.glob,
+      fopen=file, os_path=os.path,
       disable_color=options.no_color).run()