Fix new[] delete mismatch.
Fix new[] delete mismatch.

Jwis921/PersonalCuraEngine,electrocbd/CuraEngine,mspark93/CuraEngine,patrick3coffee/CuraTinyG,robotustra/curax,robotustra/curax,phonyphonecall/CuraEngine,Intrinsically-Sublime/CuraEngine,Jwis921/PersonalCuraEngine,be3d/CuraEngine,daid/CuraCutEngine,electrocbd/CuraEngine,Skeen/CuraJS-Engine,be3d/CuraEngine,Intrinsically-Sublime/CuraEngine,totalretribution/CuraEngine,Intrinsically-Sublime/CuraEngine,uus169/CuraEngine,fxtentacle/CuraEngine,pratikshashroff/pcura,patrick3coffee/CuraTinyG,alex1818/CuraEngine,ROBO3D/CuraEngine,derekhe/CuraEngine,derekhe/CuraEngine,be3d/CuraEngine,phonyphonecall/CuraEngine,foosel/CuraEngine,fxtentacle/CuraEngine,pratikshashroff/pcura,derekhe/CuraEngine,alephobjects/CuraEngine,markwal/CuraEngine,pratikshashroff/pcura,jacobdai/CuraEngine-1,markwal/CuraEngine,patrick3coffee/CuraTinyG,ROBO3D/CuraEngine,electrocbd/CuraEngine,robotustra/curax,totalretribution/CuraEngine,Skeen/CuraJS-Engine,fxtentacle/CuraEngine,Ultimaker/CuraEngine,jacobdai/CuraEngine-1,phonyphonecall/CuraEngine,uus169/CuraEngine,Jwis921/PersonalCuraEngine,foosel/CuraEngine,daid/CuraCutEngine,mspark93/CuraEngine,foosel/CuraEngine,ROBO3D/CuraEngine,alephobjects/CuraEngine,Skeen/CuraJS-Engine,alex1818/CuraEngine,Ultimaker/CuraEngine,jacobdai/CuraEngine-1,alex1818/CuraEngine,markwal/CuraEngine,mspark93/CuraEngine,alephobjects/CuraEngine,totalretribution/CuraEngine,uus169/CuraEngine