fix: Remove ENI manual deletion

[jfuss]

Issue #, if available

None

Description of changes

Removes the code that deletes ENI. This was added because MQ was not deleting the ENIs which is not happening.

Description of how you validated changes

make pr

Checklist

• Adheres to the development guidelines
• Add/update transform tests
  • Using correct values
  • Using wrong values
• Add/update integration tests

Examples?

Please reach out in the comments if you want to add an example. Examples will be
added to sam init through aws/aws-sam-cli-app-templates.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[aaythapa]

I see from the old commit this was originally added because

Number of unused Network Interfaces can accumulate and fail future test runs when there’s no more available IP addresses in the pre-created subnets.

will we see the same errors after removing it?

[jfuss]

@aaythapa

will we see the same errors after removing it?

We shouldn't. MQ reached out because they are attempting to delete ENIs that no longer exist, and the running assumption is it is caused by this.