fix: [stix import] Quick variable cleanup
fix: [stix import] Quick variable cleanup

SteveClement/MISP,FloatingGhost/MISP,MISP/MISP,FIRSTdotorg/MISP,MISP/MISP,SteveClement/MISP,FIRSTdotorg/MISP,MISP/MISP,MISP/MISP,FIRSTdotorg/MISP,SteveClement/MISP,FloatingGhost/MISP,SteveClement/MISP,MISP/MISP,SteveClement/MISP,FloatingGhost/MISP,FloatingGhost/MISP,FIRSTdotorg/MISP