Fix for stray point in center of screen
Fix for stray point in center of screen

A stray point appeared in the center of screen instead of discarding under some systems when there were points with show = false style.
This should fix the issue.
jasonbeverage/cesium,oterral/cesium,NaderCHASER/cesium,emackey/cesium,YonatanKra/cesium,jasonbeverage/cesium,likangning93/cesium,likangning93/cesium,emackey/cesium,likangning93/cesium,ggetz/cesium,likangning93/cesium,CesiumGS/cesium,AnalyticalGraphicsInc/cesium,progsung/cesium,YonatanKra/cesium,CesiumGS/cesium,kaktus40/cesium,ggetz/cesium,emackey/cesium,NaderCHASER/cesium,ggetz/cesium,hodbauer/cesium,likangning93/cesium,oterral/cesium,oterral/cesium,CesiumGS/cesium,hodbauer/cesium,YonatanKra/cesium,wallw-bits/cesium,geoscan/cesium,kaktus40/cesium,hodbauer/cesium,wallw-bits/cesium,wallw-bits/cesium,soceur/cesium,ggetz/cesium,soceur/cesium,NaderCHASER/cesium,josh-bernstein/cesium,emackey/cesium,josh-bernstein/cesium,geoscan/cesium,progsung/cesium,CesiumGS/cesium,soceur/cesium,CesiumGS/cesium,YonatanKra/cesium,AnalyticalGraphicsInc/cesium,wallw-bits/cesium