Remove duplicate note about Insiders

Author: ntrogh

release-notes/v1_103.md

@@ -67,9 +67,6 @@ Welcome to the July 2025 release of Visual Studio Code. There are many updates i
   <div class="notes-main">
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->If you'd like to read these release notes online, go to [Updates](https://code.visualstudio.com/updates) on [code.visualstudio.com](https://code.visualstudio.com).
-**Insiders:** Want to try new features as soon as possible? You can download the nightly [Insiders](https://code.visualstudio.com/insiders) build and try the latest updates as soon as they are available.
-
 ## Chat
 
 ### Chat checkpoints