Risk: over-authorization of AWS IoT policy

[P-Verifier]

We are a security research team and we recently discovered that there is an over-authorization security issue with this project's IoT policies.
The affected files are as following:

1. aws-iot-docs/developerguide/connect-iot-lorawan-create-destinations.md
2. aws-iot-docs/developerguide/iot-dc-install-provision.md
3. aws-iot-docs/developerguide/lightbulb-shadow-application.md
4. aws-iot-docs/developerguide/connect-policy.md

[joshbean]

Closing this issue or pull request in advance of archiving this repo. For more information about the decision to archive this repo (and others in the 'awsdocs' org), see the announcement on the AWS News Blog.