Removes unnecessary utf-8 encoding
Removes unnecessary utf-8 encoding

The following file added utf-8 encoding but never used. So we can
removes them at all.

senlin/api/middleware/fault.py

Change-Id: I2615092f17627c8495313e18193f1ec2b9e02539

stackforge/senlin,openstack/senlin,stackforge/senlin,openstack/senlin,openstack/senlin