tracking: Don't show "other pilots" table if it's empty
tracking: Don't show "other pilots" table if it's empty

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