PEP fixes

InvenTree/build/models.py

@@ -265,6 +265,9 @@ class Build(MPTTModel):
         for build_item in self.allocated_stock.all().prefetch_related('stock_item'):
             build_item.complete_allocation(user)
 
+            # TODO - Remove the builditem from the database
+            # build_item.delete()
+
         notes = 'Built {q} on {now}'.format(
             q=self.quantity,
             now=str(datetime.now().date())