Double backslash

eng/common/scripts/Helpers/PSModule-Helpers.ps1

@@ -8,7 +8,7 @@ function Update-PSModulePathForCI() {
   # https://github.com/microsoft/azure-pipelines-tasks/blob/c9771bc064cd60f47587c68e5c871b7cd13f0f28/Tasks/AzurePowerShellV5/Utility.ps1
 
   if ($IsWindows) {
-    $hostedAgentModulePath = $env:SystemDrive + "\Modules"
+    $hostedAgentModulePath = $env:SystemDrive + "\\Modules"
     $moduleSeperator = ";"
   }
   else {

eng/scripts/Set-VcpkgWriteModeCache.ps1

@@ -3,27 +3,10 @@ param(
     [string] $StorageContainerName = 'public-vcpkg-container'
 )
 
+Write-Host "Import PSModules-Helpers.ps1"
 ."$PSScriptRoot/../common/scripts/Helpers/PSModule-Helpers.ps1"
 
-Write-Host "`$env:PSModulePath = $($env:PSModulePath)"
-
-# Work around double backslash
-if ($IsWindows) {
-    $hostedAgentModulePath = $env:SystemDrive + "\\Modules"
-    $moduleSeperator = ";"
-} else {
-    $hostedAgentModulePath = "/usr/share"
-    $moduleSeperator = ":"
-}
-$modulePaths = $env:PSModulePath -split $moduleSeperator
-$modulePaths = $modulePaths.Where({ !$_.StartsWith($hostedAgentModulePath) })
-$AzModuleCachePath = (Get-ChildItem "$hostedAgentModulePath/az_*" -Attributes Directory) -join $moduleSeperator
-if ($AzModuleCachePath -and $env.PSModulePath -notcontains $AzModuleCachePath) {
-    $modulePaths += $AzModuleCachePath
-}
-
-$env:PSModulePath = $modulePaths -join $moduleSeperator
-
+Write-Host "Install/import Az.Storage@4.3.0"
 Install-ModuleIfNotInstalled "Az.Storage" "4.3.0" | Import-Module
 
 $ctx = New-AzStorageContext `