[5.0] cleanup language files add2scheduler-privacyconsents

[heelc29]

Summary of Changes

deprecate some more strings because they are moved to task plugin

• mail template remind
• super user notification

remove unused string from task plugin because they are still in system plugin

Testing Instructions

check translations from new task plugin

Actual result BEFORE applying this Pull Request

All strings are translated

Expected result AFTER applying this Pull Request

All strings are translated

Link to documentations

Please select:

• No documentation changes for docs.joomla.org needed
• Pull Request link for manual.joomla.org: PR to deprecate strings from original PR [5] add2scheduler-privacyconsents #40553 is missing

[alikon]

I have tested this item ✅ successfully on 66e45db

---

_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/41703.}

[richard67]

I have tested this item ✅ successfully on 66e45db

In addition to the described test, I've verified that the removed and deprecated strings are not used in any PHP, SQL, XML or JS files.

---

_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/41703.}

[richard67]

RTC

---

_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/41703.}