Gtk.TextBuffer.prototype.delete_mark

function delete_mark(mark:Gtk.TextMark):void {
    // Gjs wrapper for gtk_text_buffer_delete_mark()
}

Deletes mark, so that it's no longer located anywhere in the buffer. Removes the reference the buffer holds to the mark, so if you haven't called GObject.ref on the mark, it will be freed. Even if the mark isn't freed, most operations on mark become invalid, until it gets added to a buffer again with Gtk.TextBuffer.prototype.add_mark. Use Gtk.get_deleted to find out if a mark has been removed from its buffer. The "mark-deleted" signal will be emitted as notification after the mark is deleted.