remove comment

Author: dkuku

test/ecto/adapters/postgres_test.exs

@@ -863,8 +863,6 @@ defmodule Ecto.Adapters.PostgresTest do
     end
 
     query = Schema |> select([r], fragment("?::integer", r.x and r.y)) |> plan()
-    # Boolean operations inside fragments should be wrapped in parentheses
-    # to ensure correct precedence with surrounding SQL
     assert all(query) == ~s{SELECT (s0."x" AND s0."y")::integer FROM "schema" AS s0}
 
     query = Schema |> select([r], fragment("?::integer", r.x or r.y)) |> plan()