fix: state never initialized when controller is already running

@@ -332,13 +332,6 @@ class MobileScannerController extends ValueNotifier<MobileScannerState> {
         );
       }
     } on MobileScannerException catch (error) {
-      // If the controller is already initialized, ignore the error.
-      // Starting the controller while it is already started, or in the process of starting, is redundant.
-      if (error.errorCode ==
-          MobileScannerErrorCode.controllerAlreadyInitialized) {
-        return;
-      }
-
       // The initialization finished with an error.
       // To avoid stale values, reset the output size,
       // torch state and zoom scale to the defaults.