From your link:
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
Not including the copyright information for the MIT-licensed code is a violation of the license.
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
Not including the copyright information for the MIT-licensed code is a violation of the license.
But in my (non-lawyer) opinion - if the reproduced code is substantial/unique enough to be deemed to be covered by the license, then it's also substantial/unique enough to be subject to that license requirement.