Revert readdition of network_mode to rp container

[kimorris27]

Which issue this PR addresses:

No Jira

What this PR does / why we need it:

Fixes az aro CLI -> local containerized RP connectivity on MacOS by removing network_mode: host from docker-compose.yml for the RP container.

Test plan for issue:

Tested locally and confirmed that it works well for me. (Ran containerized RP and confirmed that az aro dev CLI could connect)

Is there any documentation that needs to be updated for this PR?

N/A

How do you know this will function as expected in production?

N/A

[geowa4]

Do we need to change some URLs to host.containers.internal to match this networking configuration?

[kimorris27]

Do we need to change some URLs to host.containers.internal to match this networking configuration?

@geowa4, which URLs are you thinking we'd need to change?

[geowa4]

Do we need to change some URLs to host.containers.internal to match this networking configuration?

@geowa4, which URLs are you thinking we'd need to change?

If anything is referencing localhost and not calling something in the same container, I would expect it to fail. If there are no such calls, then this change is safe. I'm not sure if any exist but I recall they did at some point.

[kimorris27]

Do we need to change some URLs to host.containers.internal to match this networking configuration?

@geowa4, which URLs are you thinking we'd need to change?

If anything is referencing localhost and not calling something in the same container, I would expect it to fail. If there are no such calls, then this change is safe. I'm not sure if any exist but I recall they did at some point.

Gotcha. I can't think of any such calls.

[shubhadapaithankar]

LGTM