remove unused widget

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/pages/video/widgets/app_bar.dart

@@ -1,58 +0,0 @@
-import 'package:PiliPlus/plugin/pl_player/models/play_status.dart';
-import 'package:flutter/material.dart';
-
-class ScrollAppBar extends StatelessWidget {
-  final double scrollVal;
-  final Function callback;
-  final PlayerStatus playerStatus;
-
-  const ScrollAppBar({
-    super.key,
-    required this.scrollVal,
-    required this.callback,
-    required this.playerStatus,
-  });
-
-  @override
-  Widget build(BuildContext context) {
-    final double statusBarHeight = MediaQuery.paddingOf(context).top;
-    final videoHeight = MediaQuery.sizeOf(context).width * 9 / 16;
-    double scrollDistance = scrollVal;
-    if (scrollVal > videoHeight - kToolbarHeight) {
-      scrollDistance = videoHeight - kToolbarHeight;
-    }
-    return Positioned(
-      top: -videoHeight + scrollDistance + kToolbarHeight + 0.5,
-      left: 0,
-      right: 0,
-      child: Opacity(
-        opacity: scrollDistance / (videoHeight - kToolbarHeight),
-        child: Container(
-          height: statusBarHeight + kToolbarHeight,
-          color: Theme.of(context).colorScheme.surface,
-          padding: EdgeInsets.only(top: statusBarHeight),
-          child: AppBar(
-            primary: false,
-            centerTitle: true,
-            title: TextButton(
-              onPressed: () => callback(),
-              child: Row(
-                mainAxisSize: MainAxisSize.min,
-                children: [
-                  const Icon(Icons.play_arrow_rounded),
-                  Text(
-                    playerStatus == PlayerStatus.paused
-                        ? '继续播放'
-                        : playerStatus == PlayerStatus.completed
-                            ? '重新播放'
-                            : '播放中',
-                  )
-                ],
-              ),
-            ),
-          ),
-        ),
-      ),
-    );
-  }
-}