chore: remove old scroll patch for firefox (#2018)

Author: 2color

docs/.vuepress/theme/components/Page.vue

@@ -16,7 +16,6 @@
     </div>
 
     <Analytics />
-    <ScrollPatch />
 
     <slot name="bottom" />
   </main>
@@ -29,7 +28,6 @@ import PageNav from '@parent-theme/components/PageNav.vue'
 import Feedback from './Feedback.vue'
 import LegacyCallout from './LegacyCallout.vue'
 import Analytics from './Analytics.vue'
-import ScrollPatch from './ScrollPatch.vue'
 
 export default {
   name: 'Page',
@@ -38,8 +36,7 @@ export default {
     PageNav,
     Feedback,
     LegacyCallout,
-    Analytics,
-    ScrollPatch
+    Analytics
   },
   props: ['sidebarItems'],
   computed: {