Remove nextbike_gs dupplicate

systems.csv

@@ -490,7 +490,6 @@ HR,Grad Ivanić-Grad (Croatia),Ivanic Grad,nextbike_ig,https://www.nextbike.hr/h
 HR,Grad Karlovac (Croatia),Karlovac,nextbike_kc,https://www.nextbike.hr/hr/karlovac/,https://gbfs.nextbike.net/maps/gbfs/v2/nextbike_kc/gbfs.json,2.3,
 HR,Grad Križevci (Croatia),Križevci,nextbike_gk,https://www.nextbike.hr/hr/krizevci/,https://gbfs.nextbike.net/maps/gbfs/v2/nextbike_gk/gbfs.json,2.3,
 HR,Grad Metković (Croatia),Metković,nextbike_cm,https://www.nextbike.hr/hr/metkovic/,https://gbfs.nextbike.net/maps/gbfs/v2/nextbike_cm/gbfs.json,2.3,
-HR,Grad Pula (Croatia),Pula,nextbike_gs,https://www.nextbike.hr/hr/,https://gbfs.nextbike.net/maps/gbfs/v2/nextbike_gs/gbfs.json,2.3,
 HR,Grad Šibenik (Croatia),Šibenik,nextbike_bc,https://www.nextbike.hr/hr/sibenik/,https://gbfs.nextbike.net/maps/gbfs/v2/nextbike_bc/gbfs.json,2.3,
 HR,Grad Sisak (Croatia),Sisak,nextbike_cs,https://www.nextbike.hr/hr/sisak/,https://gbfs.nextbike.net/maps/gbfs/v2/nextbike_cs/gbfs.json,2.3,
 HR,Grad Slavonski Brod (Croatia),Slavonski Brod,nextbike_sb,https://www.nextbike.hr/hr/slavonskibrod/,https://gbfs.nextbike.net/maps/gbfs/v2/nextbike_sb/gbfs.json,2.3,