Update use-microsoft-tunnel-ios.md

App no longer available in the app store as the support ended. So removed the statement that talks about installing the same from the app store.

IssuE#https://github.com/MicrosoftDocs/memdocs/issues/3012

Author: msbemba

memdocs/intune/user-help/use-microsoft-tunnel-ios.md

@@ -36,12 +36,6 @@ Microsoft Tunnel uses Microsoft Defender for Endpoint as The Microsoft Tunnel cl
 
 The Microsoft Tunnel client app helps you securely and privately connect to your corporate network over a VPN. If your organization requires you to use the app, they already configured a VPN connection for your work account. To connect to the VPN, simply install the app and sign in with your work account. 
 
-## Install Microsoft Tunnel  
-
-Tunnel is available in the App Store. Before heading there, check your device to see if it's already installed.   
-
-If you can’t find Tunnel in the App Store, contact your IT support person for help.  
-
 
 ## Connect and disconnect VPN