diff --git a/eng/common/scripts/Get-AADIdentityFromGithubUser.ps1 b/eng/common/scripts/Get-AADIdentityFromGithubUser.ps1
deleted file mode 100644
index a179a3f9329cb..0000000000000
--- a/eng/common/scripts/Get-AADIdentityFromGithubUser.ps1
+++ /dev/null
@@ -1,81 +0,0 @@
-<#
-.DESCRIPTION
-Get the corresponding ms alias from github identity
-.PARAMETER AadToken
-The aad access token.
-.PARAMETER GithubName
-Github identity. E.g sima-zhu
-.PARAMETER ContentType
-Content type of http requests.
-.PARAMETER AdditionalHeaders
-Additional parameters for http request headers in key-value pair format, e.g. @{ key1 = val1; key2 = val2; key3 = val3}
-#>
-[CmdletBinding(SupportsShouldProcess = $true)]
-param(
-  [Parameter(Mandatory = $true)]
-  [string]$TenantId,
-  
-  [Parameter(Mandatory = $true)]
-  [string]$ClientId,
-  
-  [Parameter(Mandatory = $true)]
-  [string]$ClientSecret,
-
-  [Parameter(Mandatory = $true)]
-  [string]$GithubUser
-)
-Set-StrictMode -Version 3
-
-. "${PSScriptRoot}\common.ps1"
-
-$OpensourceAPIBaseURI = "https://repos.opensource.microsoft.com/api/people/links/github/$GithubUser"
-
-function Generate-AadToken ($TenantId, $ClientId, $ClientSecret) {
-    $LoginAPIBaseURI = "https://login.microsoftonline.com/$TenantId/oauth2/token"
-    try {
-        $headers = @{
-            "content-type" = "application/x-www-form-urlencoded"
-        }
-        
-        $body = @{
-            "grant_type" = "client_credentials"
-            "client_id" = $ClientId
-            "client_secret" = $ClientSecret
-            "resource" = "api://repos.opensource.microsoft.com/audience/7e04aa67"
-        }
-        Write-Host "Generating aad token..."
-        $resp = Invoke-RestMethod $LoginAPIBaseURI -Method 'POST' -Headers $headers -Body $body
-    }
-    catch { 
-        LogError $_
-        exit 1
-    }
-    
-    return $resp.access_token
-} 
-
-$Headers = @{
-    "Content-Type" = "application/json"
-    "api-version" = "2019-10-01"
-}
-
-try {
-    $opsAuthToken = Generate-AadToken -TenantId $TenantId -ClientId $ClientId -ClientSecret $ClientSecret
-    $Headers["Authorization"] = "Bearer $opsAuthToken"
-    Write-Host "Fetching aad identity for github user: $GithubName"
-    $resp = Invoke-RestMethod $OpensourceAPIBaseURI -Method 'GET' -Headers $Headers
-}
-catch { 
-    LogError $_
-    exit 1
-}
-
-$resp | Write-Verbose
-
-if ($resp.aad) {
-    Write-Host "Fetched aad identity $($resp.aad.alias) for github user $GithubName."
-    return $resp.aad.alias
-}
-
-LogError "Failed to retrieve the aad identity from given github user: $GithubName"
-exit 1