Use raw SQL to prevent syntax errors in legacy migration

farmbot_core/priv/asset/migrations/20190926165507_force_resync_points.exs

@@ -4,8 +4,6 @@ defmodule FarmbotCore.Asset.Repo.Migrations.ForceResyncPoints do
   alias FarmbotCore.Asset.{Repo, Point}
 
   def change do
-    for %{id: id} = point when is_integer(id) <- Repo.all(Point) do
-      Repo.delete!(point)
-    end
+    execute("TRUNCATE TABLE points;")
   end
 end