PHPCS: Ignore rule by file for WP.com

[kraftbj]

The Jetpack ruleset is not used on WP.com, so our rule excluding the podcast template files from the undeclared variable sniff does not apply. We can remove that to disable by file so it'll work on WP.com.

Changes proposed in this Pull Request:

• Moves PHPCS ignore.

Jetpack product discussion

n/a

Does this pull request change what data or activity we track or use?

No.

Testing instructions:

• CI happy?

[matticbot]

Caution: This PR has changes that must be merged to WordPress.com
Hello kraftbj! These changes need to be synced to WordPress.com - If you 're an a11n, please commandeer and confirm D74475-code works as expected before merging this PR. Once this PR is merged, please commit the changes to WP.com. Thank you!
This revision will be updated with each commit to this PR

[github-actions]

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[kraftbj]

r239625-wpcom

[github-actions]

Great news! One last step: head over to your WordPress.com diff, D74475-code, and commit it.
Once you've done so, come back to this PR and add a comment with your changeset ID.

Thank you!