Update exploration-build.yml for Azure Pipelines

build/azure-pipelines/exploration-build.yml

@@ -10,20 +10,10 @@ steps:
   inputs:
     versionSpec: "10.15.1"
 
-- task: AzureKeyVault@1
-  displayName: 'Azure Key Vault: Get Secrets'
-  inputs:
-    azureSubscription: 'vscode-builds-subscription'
-    KeyVaultName: vscode
-
 - script: |
     set -e
 
     cat << EOF > ~/.netrc
-    machine github.com
-    login vscode
-    password $(github-distro-mixin-password)
-    EOF
 
     git config user.email "vscode@microsoft.com"
     git config user.name "VSCode"