remove token from notifier middleware

notifier middleware is capturing token and sending it to MQ. this
is not advisable so we should filter it out.

Change-Id: I11d9f2f23fc3b60c945c33d4d02bd7640d88a083
Closes-Bug: #1321080
sync oslo

sync to Ia1bfa1bd24989681db1d2f385defc12e69a01f8d

Change-Id: Idbbbb9fcec8e8b0d1930956850b1a7371081b632
Merge "sync oslo"