Removed the redundant clss mw-abusefilter-examine-syntaxerror
as it was causing trouble because the syntax checker in
ext.abuseFilter.edit.js wasn't aware of it.
Change-Id: Ibb90c3e096c3914905c03a3e30c08ba8d14c9024
Was broken by r81905 consolidating background-repeat and background-position into a single background rule, which implied a 'background-image: none' overriding the background-image values set by other rules.
Restored them & added a comment so the next person won't do the same.
Also moved the image files to match the reorg of the css in r95572, which would have broken these images if r81905 hadn't done it first. ;)
