remove unused scrape table

oml/item/models.py

@@ -264,7 +264,6 @@ class Item(db.Model):
     def delete(self, commit=True):
         Sort.query.filter_by(item_id=self.id).delete()
         Transfer.query.filter_by(item_id=self.id).delete()
-        Scrape.query.filter_by(item_id=self.id).delete()
         state.db.session.delete(self)
         icons.clear('cover:%s' % self.id)
         icons.clear('preview:%s' % self.id)
@@ -314,7 +313,6 @@ class Item(db.Model):
                     self.sync_metadata()
 
     def edit(self, data, modified=None):
-        Scrape.query.filter_by(item_id=self.id).delete()
         self.update_metadata(data, modified)
         for f in self.files.all():
             f.move()
@@ -710,38 +708,6 @@ class File(db.Model):
         state.db.session.add(self)
         state.db.session.commit()
 
-class Scrape(db.Model):
-
-    __tablename__ = 'scrape'
-
-    item_id = sa.Column(sa.String(32), sa.ForeignKey('item.id'), primary_key=True)
-    item = sa.orm.relationship('Item', backref=sa.orm.backref('scraping', lazy='dynamic'))
-
-    added = sa.Column(sa.DateTime())
-
-    def __repr__(self):
-        return '='.join(map(str, [self.item_id, self.added]))
-
-    @classmethod
-    def get(cls, item_id):
-        return cls.query.filter_by(item_id=item_id).first()
-
-    @classmethod
-    def get_or_create(cls, item_id):
-        t = cls.get(item_id)
-        if not t:
-            t = cls(item_id=item_id)
-            t.added = datetime.utcnow()
-            t.save()
-        return t
-
-    def save(self):
-        state.db.session.add(self)
-        state.db.session.commit()
-
-    def remove(self):
-        state.db.session.delete(self)
-        state.db.session.commit()
 
 class Transfer(db.Model):
     __tablename__ = 'transfer'