We had carried over the full list of pep8 whitespace ignores from nova.
Trying to address them all in the entire nova repository would have been
too big a task; but it's tenable here in placement.
Do it now rather than letting these whitespace issues compound.
This change removes the E* whitespace ignores and fixes the pep8 issues
they were masking.
Change-Id: Icbabdb9b56fd5a3e9fd14ab537abf3d0d6456fee