removing redundant getHeatmapValue call
removing redundant getHeatmapValue call

geoscan/cesium,CesiumGS/cesium,YonatanKra/cesium,YonatanKra/cesium,YonatanKra/cesium,progsung/cesium,jasonbeverage/cesium,AnalyticalGraphicsInc/cesium,josh-bernstein/cesium,progsung/cesium,likangning93/cesium,likangning93/cesium,YonatanKra/cesium,likangning93/cesium,CesiumGS/cesium,likangning93/cesium,CesiumGS/cesium,jasonbeverage/cesium,CesiumGS/cesium,josh-bernstein/cesium,AnalyticalGraphicsInc/cesium,CesiumGS/cesium,geoscan/cesium,likangning93/cesium