Remove iOS & Android video from index (#12243)

_Description of what this PR is changing or adding, and why:_

_Issues fixed by this PR (if any):_

_PRs or commits this PR depends on (if any):_

## Presubmit checklist

- [ ] If you are unwilling, or unable, to sign the CLA, even for a
_tiny_, one-word PR, please file an issue instead of a PR.
- [ ] If this PR is not meant to land until a future stable release,
mark it as draft with an explanation.
- [ ] This PR follows the [Google Developer Documentation Style
Guidelines](https://developers.google.com/style)—for example, it doesn't
use _i.e._ or _e.g._, and it avoids _I_ and _we_ (first-person
pronouns).
- [ ] This PR uses [semantic line
breaks](https://github.com/dart-lang/site-shared/blob/main/doc/writing-for-dart-and-flutter-websites.md#semantic-line-breaks)
  of 80 characters or fewer.

---------

Co-authored-by: Shams Zakhour (ignore Sfshaza) <[email protected]>

Author: khanhnwin

src/content/get-started/learn-flutter.md

@@ -4,6 +4,8 @@ description: Resources to help you learn Flutter.
 toc: false
 ---
 
+{% ytEmbed 'W4JWeQolJsU', 'Build and ship amazing multiplatform iOS and Android apps with one codebase', true %}
+
 ## For new Flutter developers
 
 If you're brand new to Flutter, 
@@ -26,8 +28,6 @@ in order:
     through some of the most important pieces of 
     building Flutter applications.
 
-{% ytEmbed 'W4JWeQolJsU', 'Build and ship amazing multiplatform iOS and Android apps with one codebase' %}
-
 ## Apply your existing knowledge
 
 * [Flutter for Android developers][]

src/content/index.md

@@ -29,10 +29,6 @@ see [What's new][].**
 Ready to build beautiful, multiplatform apps from a single codebase?
 This video walks you through the fundamentals of Flutter and shows you how to get started.
 
-{% videoWrapper 'Build and ship amazing multiplatform iOS and Android apps with one codebase' %}
-{% ytEmbed 'W4JWeQolJsU', 'Build and ship amazing multiplatform iOS and Android apps with one codebase' %}
-{% endvideoWrapper %}
-
 Once you've [Set up Flutter][],
 you should follow the 
 [Write your first Flutter app][] codelab 
@@ -80,7 +76,7 @@ Coming from another platform? Check out Flutter for:
 ### Videos
 
 {% videoWrapper 'Check out what\'s new in Flutter at Google I/O 2025!' %}
-{% ytEmbed 'v6Rzo5khNE8', 'What\'s new in Flutter' %}
+{% ytEmbed 'v6Rzo5khNE8', 'What\'s new in Flutter', true %}
 {% endvideoWrapper %}
 <br>
 

src/content/release/whats-new.md

@@ -18,8 +18,6 @@ join the [flutter-announce][] Google group.
 For Dart, you can join the [Dart Announce][] Google group,
 and review the [Dart changelog][].
 
-{% ytEmbed 'v6Rzo5khNE8', 'What\'s new in Flutter' %}
-
 [Dart Announce]: {{site.groups}}/a/dartlang.org/g/announce
 [Dart changelog]: {{site.github}}/dart-lang/sdk/blob/main/CHANGELOG.md
 [flutter-announce]: {{site.groups}}/forum/#!forum/flutter-announce