Remove Py2-only code that checks sys.version_info.
Remove Py2-only code that checks sys.version_info.

elacuesta/scrapy,pablohoffman/scrapy,scrapy/scrapy,eLRuLL/scrapy,dangra/scrapy,starrify/scrapy,pablohoffman/scrapy,elacuesta/scrapy,pawelmhm/scrapy,starrify/scrapy,pawelmhm/scrapy,pablohoffman/scrapy,pawelmhm/scrapy,dangra/scrapy,elacuesta/scrapy,eLRuLL/scrapy,dangra/scrapy,eLRuLL/scrapy,scrapy/scrapy,starrify/scrapy,scrapy/scrapy