flight.js: remove unused method followFlight()
flight.js: remove unused method followFlight()

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