removed attempts to rename the main content skiplink

app/controllers/avatar.php

app/controllers/course/details.php

app/controllers/course/members.php

app/controllers/course/overview.php

app/controllers/my_courses.php

app/controllers/notifications.php

app/controllers/online.php

app/controllers/profile.php

app/controllers/settings/account.php

app/controllers/settings/calendar.php

app/controllers/settings/categories.php

app/controllers/settings/deputies.php

app/controllers/settings/details.php

app/controllers/settings/general.php

app/controllers/settings/messaging.php

app/controllers/settings/notification.php

app/controllers/settings/password.php

app/controllers/settings/privacy.php

app/controllers/settings/statusgruppen.php

app/controllers/settings/studies.php