cleanup of Edition 30 menu links

cleaned up this block to remove some links to Edition 30 material

listed here for reference (used to be in Golf GTI side menu)

• http://www.johnoldfield.dsl.pipex.com//images/weblog/ed30aereview/auto_express_ed30.pdf
• http://www.mk5golfgti.co.uk/forum/index.php?topic=2073.0
• http://www.mk5golfgti.co.uk/forum/index.php?topic=393.0
• http://www.mk5golfgti.co.uk/forum/index.php?topic=3567.0
• http://www.mk5golfgti.co.uk/forum/downloads/golf_gti_edition_30_brochure.pdf
• http://www.johnoldfield.dsl.pipex.com//images/weblog/GreatestGolfGtiAutoExpress2009.pdf
• http://http//www.mk5golfgti.co.uk/forum/index.php?topic=6005.0
• http://johnoldfield.blogspot.com/2009/12/oulton-park-trackdayscouk-event-golf.html
• http://www.johnoldfield.dsl.pipex.com/images/PerformanceTunerGTIShootOutJul08_optimised.pdf
• http://www.johnoldfield.dsl.pipex.com/images/weblog/ed30pvwapr08/PVW_Apr08_2TFSI_shootout.pdf
• http://www.johnoldfield.dsl.pipex.com//images/weblog/racelinegti300rmkv_article.pdf