[4.0]mod_related strings

[brianteeman]

Remove an unused string.

Code review

[toivo]

I have tested this item ✅ successfully on 3df4481

Tested successfully in Beta6-dev of 13 December.

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[ghost]

I have tested this item ✅ successfully on 3df4481

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[infograf768]

rtc

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[infograf768]

tks