Fix unnecessary output pipeline pollution in build-module script for authentication module

Author: adamedx

src/Authentication/Authentication/build-module.ps1

@@ -80,10 +80,10 @@ if ($LastExitCode -ne 0) {
 
 # Ensure out directory exists and is clean.
 Remove-Item -Path $outDir -Recurse -ErrorAction Ignore
-New-Item -Path $outDir -ItemType Directory
-New-Item -Path $outDeps -ItemType Directory
-New-Item -Path $outCore -ItemType Directory
-New-Item -Path $outDesktop -ItemType Directory
+New-Item -Path $outDir -ItemType Directory | out-null
+New-Item -Path $outDeps -ItemType Directory | out-null
+New-Item -Path $outCore -ItemType Directory | out-null
+New-Item -Path $outDesktop -ItemType Directory | out-null
 
 # Copy manifest.
 Copy-Item -Path "$cmdletsSrc/$ModulePrefix.$ModuleName.format.ps1xml" -Destination $outDir