fix: remove useless comments

lib/views/pin_lock_view.dart

@@ -89,7 +89,6 @@ class _PinEntryViewState extends State<PinEntryView> {
     final l10n = AppLocalizations.of(context);
 
     if (_isCreateFlow && !_isConfirmStep) {
-      // First entry of a new PIN — stash it, then ask for confirmation.
       final entered = _digits;
 
       setState(() {
@@ -127,7 +126,6 @@ class _PinEntryViewState extends State<PinEntryView> {
       return;
     }
 
-    // Unlock flow.
     setState(() => _isSubmitting = true);
     final ok = await _verify(_digits);
     if (!mounted) return;