Remove useless method is timetable scraper
Remove useless method is timetable scraper

This method just get semester and semester part, but we have this
data on initial state. Because this, spider get more then 1000 useless
requests

stepanov-valentin/lpschedule,stenvix/lpschedule,stenvix/lpschedule,stepanov-valentin/lpschedule,stenvix/lpschedule,stepanov-valentin/lpschedule,stepanov-valentin/lpschedule,stenvix/lpschedule