Activity : Delete the sentence "Allow person completing the activity to mark themselves com..."

Summary

Delete the sentence "Allow person completing the activity to mark themselves com..."

Content

Hi,

In the activity of the offering, how could I delete the sentence "Allow person completing the activity to mark themselves complete" and its checkbox in English and in French ?

The sentence is located from My client groups > Learning catalog > Offerings > Select an offering > Edit > Activities tab (In the left-corner) > Create or Create from activity or Edit.

Regards.