logging.rst: remove unused, misleading import
logging.rst: remove unused, misleading import

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