SVY: adjust english language variable for deleting... (ILIAS-eLearnin…

…g#6408)

... all participant data to avoid confusion about the functionality, as
user could think that the old phrasing could lead to thinking that every participant gets deleted instead of their data. (35538)

Mantis Ticket: https://mantis.ilias.de/view.php?id=35538

lang/ilias_en.lang

@@ -16132,7 +16132,7 @@ svy#:#svy_invite_participants#:#Invite Participants
 svy#:#svy_link_to_svy#:#Link to Survey
 svy#:#svy_part_overview#:#Overview
 svy#:#svy_print_selection#:#Print View Selection
-svy#:#svy_remove_all_participants#:#Remove all Participants
+svy#:#svy_remove_all_participants#:#Delete all Participant Data
 svy#:#svy_remove_participants#:#Remove Participants
 svy#:#svy_selected_participants#:#Selected Participants
 svy#:#svy_selected_questions#:#Selected Questions