During the build-up to Friday's meeting with Everton, Arsenal fans flooded the ground at the Emirates Stadium with a clear message - owner Stan Kroenke must leave.The 73-year-old American, who has been seen as the pantomime villain at Arsenal for a few years, signed his side to be part of the terrible Super League plans. It was the last straw for some supporters who had seen Kroenke pinch the pens for years, only to use his savings to give Willian a £ 220,000-a-week contract.They went to protest, and as you can imagine,…