[Amp-accordion] overuse [noise] of aria/role/section

## Describe the new feature or change to an existing feature you'd like to see

We are using amp-accordion in a way that does not require all those aria-labelledby and role=region added by the component
We use a subtitle (h3) then content relevant to it. The contents of each accordion is obvious by the semantic structure (correctly applied!)
An accessibility consultant also confirmed us that it's just been too noisy.
I'm hoping there would be a way to deactivate those added role/aria-labelledby, and even the option of a section per item is too much in our case.

## Describe alternatives you've considered

We tried adding another role ourselve but its been automatically overwritten

## Additional context