Remove old books.js.coffee which is empty
Remove old books.js.coffee which is empty

yannvery/twist,RealSilo/twist,RealSilo/twist,radar/twist,radar/twist,yannvery/twist,doug-c/mttwist,doug-c/mttwist,radar/twist,yannvery/twist,doug-c/mttwist,RealSilo/twist