Charles Campion Goes Into Battle Again   After his confrontation with Chicken Tikka Masala many years ago and his sideswipe at the Chinese restaurant industry more recently, top food critic and journalist Charles Campion is in the forefront of the battle once again. In his new London Restaurant Guide he takes London's famous Brick Lane to task for "slapdash dishes, higher prices and very high pester power". Whilst declaring Brick Lane a no-go area he rates the New Tayyab in Whitechapel amongst his Top Ten as well as Lebanese Al Waha in Notting Hill.