remove copyfile/linkfile from last sync

Change-Id: I490411bc234e184aa8adedee099ebd38dde08925
diff --git a/subcmds/sync.py b/subcmds/sync.py
index 7bbbe44..6c2f320 100644
--- a/subcmds/sync.py
+++ b/subcmds/sync.py
@@ -511,6 +511,7 @@
                 except OSError:
                   break
                 project_dir = os.path.dirname(project_dir)
+              project.RemoveOldCopyAndLinkFiles(os.path.join(self.manifest.repodir, 'projects', '%s.git' % path))
 
     new_project_paths.sort()
     fd = open(file_path, 'w')