chore(model.spec): remove unused chai.expect() import
chore(model.spec): remove unused chai.expect() import

kuiqiang/cvp,datatypevoid/vulgar,angeltrickz/prueba_vulgar,Spirovanni/ampdin,juansaucedo/develook,datatypevoid/vulgar,datatypevoid/vulgar,angeltrickz/prueba_vulgar,rschellius/vulgar,Spirovanni/ampdin,gunnertech/rednotebook,juansaucedo/develook,Spirovanni/ampdin,juansaucedo/develook,rschellius/vulgar,kuiqiang/cvp,angeltrickz/prueba_vulgar,kuiqiang/cvp,rschellius/vulgar