Hide comment field on shift self-signup

includes/model/ShiftEntry_model.php

@@ -75,7 +75,7 @@ function ShiftEntry_create($shift_entry)
             $shift_entry['SID'],
             $shift_entry['TID'],
             $shift_entry['UID'],
-            $shift_entry['Comment'],
+            $shift_entry['Comment'] ?? '',
             $shift_entry['freeload_comment'],
             (int)$shift_entry['freeloaded'],
         ]

includes/view/ShiftEntry_view.php

@@ -138,7 +138,7 @@ function ShiftEntry_create_view_user($shift, Room $room, $angeltype, $comment)
             Shift_view_header($shift, $room),
             info(sprintf(__('Do you want to sign up for this shift as %s?'), AngelType_name_render($angeltype)), true),
             form([
-                form_textarea('comment', __('Comment (for your eyes only):'), $comment),
+                //form_textarea('comment', __('Comment (for your eyes only):'), $comment),
                 form_submit('submit', icon('check-lg') . __('Save'))
             ])
         ]);