glue: disable connection type and properties checks

[bendrucker]

Relaxes type requirements where the provider resource has diverged from the API models:

hashicorp/terraform-provider-aws#37731

These types were confirmed by AWS support to be supported but not fully documented. They are also not available in types and enums in various SDKs, including the AWS Go SDK v2 which the Terraform AWS Provider uses.

So in effect, we can't validate these without maintaining a matching list of connection types.

Closes #757

[bendrucker]

I'm inclined to just remove the rule, but could also replace the implementation with a noop now that it's not actually generated.

[wata727]

Thanks!

These types were confirmed by AWS support to be supported but not fully documented

😞

[wata727]

could also replace the implementation with a noop

Yeah, this is a good approach since it avoids the "rule does not exist" error if compatibility is important. However, for now I agree to simply remove the rule.
In the future, we will need to decide how often we will introduce incompatibilities after the v1 release, and consider a procedure to replace them with noop in the meantime.