diff --git a/.vsts-ci/mac.yml b/.vsts-ci/mac.yml
index ad7c2521b03..39a923233ff 100644
--- a/.vsts-ci/mac.yml
+++ b/.vsts-ci/mac.yml
@@ -20,13 +20,6 @@ phases:
     displayName: Set Build Name for Non-PR
     condition: ne(variables['Build.Reason'], 'PullRequest')
 
-# Several scripts require TMPDIR to exist
-# Set it to AGENT_TEMPDIRECTORY so that we know it exists
-  - powershell: |
-      Write-Host "##vso[task.setvariable variable=TMPDIR]$env:AGENT_TEMPDIRECTORY"
-    displayName: Set TMPDIR to AGENT_TEMPDIRECTORY
-    condition: succeededOrFailed()
-
   - powershell: |
       git submodule update --init
     displayName: SubModule Init