ArcGIS API for JavaScript 3.x与4.x 去除ESRI logo的方法
arcgis api for js 3.x版本去除logo
map = new esri.Map("map", { extend:initExtend,logo:false });
arcgis api for js 4.x版本去除logo
var view = new MapView({ ... });
// 去除logo
view.ui._removeComponents(["attribution"]);