I want provide an update to my issue. The two PHP versions I want to remove are labeled as "PHP 5.6" and "PHP 5 from OS vendor"
Instead of removing both at the same time as I originally tried, I tired one at a time. I first removed just "PHP 5.6" by itself and it was successful - no warning...
We are running Plesk Onyx V17.8.11 Update #94. We are attempting to remove all active versions of PHP v5.x interpreter using the Add/Remove Product Components interface. However, it is giving us a warning saying:
"The following components depend on the components you are going to remove or...