Remove log messages that could crash the app due to missing params.

[ScoutHarris]

Ref: #18129

In this change, I added some "nice to have" log messages. Turns out, they weren't so nice to have as some of the data could be missing, causing the app to crash.

• I removed two logs I added that are unrelated to the feature, but seemed like a good idea at the time.
• The log that is related to the feature and I want to keep, I removed possible empty values.

To test:

• Go to Reader > Automattic tab.
• Select a cross-post post where the original post is on a P2 where you are not a member.
  • If running in a simulator, disabling the proxy should result in the same behavior.
• Verify the app does not crash, and the Error Loading Post view is shown.

Regression Notes

1. Potential unintended areas of impact

2. What I did to test those areas of impact (or what existing automated tests I relied on)

3. What automated tests I added (or what prevented me from doing so)

PR submission checklist:

• I have completed the Regression Notes.
• I have considered adding unit tests for my changes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

[ScoutHarris]

Hey @mokagio . This will need to go in the next 19.5 release. Thank you!

[wpmobilebot]

You can test the Jetpack changes on this Pull Request by downloading it from AppCenter here with build number: pr18191-711763a. IPA is available here. If you need access to this, you can ask a maintainer to add you.

[wpmobilebot]

You can test the WordPress changes on this Pull Request by downloading it from AppCenter here with build number: pr18191-711763a. IPA is available here. If you need access to this, you can ask a maintainer to add you.

[mokagio]

@ScoutHarris this has been bundled as part of 19.5 beta 1 (19.5.0.1).

Thanks for your work 🙌