delete one more trackingFields reference

[composerjk]

This one was missed from Delete probably-unused TrackingFields.tpl PR #27233

Overview

Removing trackingFields reference that wasn't removed in PR #27233 but should have been.

Comments

Noted in PR: #27233 (comment) and in Mattermost: https://chat.civicrm.org/civicrm/pl/owg3arh9bj8ntr7jqosgi7i1io

[civibot]

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[civicrm-builder]

Can one of the admins verify this patch?

[colemanw]

@civicrm-builder add to whitelist