Remove unused pickle import
Remove unused pickle import

scrapy/scrapy,pablohoffman/scrapy,pablohoffman/scrapy,scrapy/scrapy,dangra/scrapy,dangra/scrapy,pawelmhm/scrapy,elacuesta/scrapy,elacuesta/scrapy,dangra/scrapy,pablohoffman/scrapy,pawelmhm/scrapy,scrapy/scrapy,elacuesta/scrapy,pawelmhm/scrapy