Update functions-reference-powershell.md

Removing the 'recommended' tag for Functions version and PowerShell version since Functions runtime version V4 + PowerShell version 7.2 is the only supported option since Dec 3 2022.
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Author: MadhuraBharadwaj-MSFT

articles/azure-functions/functions-reference-powershell.md

@@ -390,7 +390,7 @@ The following table shows the PowerShell versions available to each major versio
 
 | Functions version | PowerShell version                               | .NET version  | 
 |-------------------|--------------------------------------------------|---------------|
-| 4.x (recommended) | PowerShell 7.2 (recommended) | .NET 6 |
+| 4.x | PowerShell 7.2 | .NET 6 |
 
 You can see the current version by printing `$PSVersionTable` from any function.