public/js/flight: remove unused markers array
public/js/flight: remove unused markers array

skylines-project/skylines,Harry-R/skylines,snip/skylines,snip/skylines,dkm/skylines,shadowoneau/skylines,TobiasLohner/SkyLines,dkm/skylines,Harry-R/skylines,shadowoneau/skylines,shadowoneau/skylines,RBE-Avionik/skylines,dkm/skylines,TobiasLohner/SkyLines,Turbo87/skylines,shadowoneau/skylines,Harry-R/skylines,RBE-Avionik/skylines,snip/skylines,kerel-fs/skylines,skylines-project/skylines,dkm/skylines,kerel-fs/skylines,kerel-fs/skylines,skylines-project/skylines,Harry-R/skylines,RBE-Avionik/skylines,TobiasLohner/SkyLines,skylines-project/skylines,Turbo87/skylines,Turbo87/skylines,RBE-Avionik/skylines,Turbo87/skylines