remove unused import

Author: MaxDall

src/fundus/scraping/crawler.py

@@ -58,7 +58,7 @@
 from fundus.scraping.filter import ExtractionFilter, Requires, RequiresAll, URLFilter
 from fundus.scraping.html import CCNewsSource
 from fundus.scraping.scraper import CCNewsScraper, WebScraper
-from fundus.scraping.session import CrashThread, SessionHandler, session_handler
+from fundus.scraping.session import CrashThread, session_handler
 from fundus.scraping.url import URLSource
 from fundus.utils.events import __EVENTS__
 from fundus.utils.timeout import Timeout