Merge "quobyte: remove dependency to xattr"

diff --cc requirements.txt
index 06ba1b33a95a55cb713473d9e24c3d6b1c106cae,7e53a3f7b5ba4d864d69bec54726eaadda6535f0..5f043ca5f69cc90a18a54aedc3121a27a7cc3bf9
--- 1/requirements.txt
--- 2/requirements.txt
+++ b/requirements.txt
@@@ -41,6 -41,6 +41,5 @@@ sqlalchemy-migrate>=0.9.1,!=0.9.
  stevedore>=1.1.0  # Apache-2.0
  suds>=0.4
  WebOb>=1.2.3
 -wsgiref>=0.1.2
  oslo.i18n>=1.3.0  # Apache-2.0
  oslo.vmware>=0.9.0                      # Apache-2.0
- xattr>=0.4