dev/core#6493 revert "SearchKit - Make loading 600ms faster"

[colemanw]

Overview

This reverts commit da41dc7 for the stable release while we work on a better solution for master. See #35683

This PR is for 6.14. The 6.15 version is here: #35692

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[civibot]

The issue associated with the Pull Request can be viewed at https://lab.civicrm.org/dev/core/-/issues/6493