Disable smoke tests on Linux

Puppeteer needs special user setup in order to launch

build/azure-pipelines/linux/product-build-linux.yml

@@ -111,16 +111,6 @@ steps:
   displayName: Run integration tests
   condition: and(succeeded(), eq(variables['VSCODE_STEP_ON_IT'], 'false'))
 
-- script: |
-    set -e
-    cd test/smoke
-    yarn compile
-    cd -
-    yarn smoketest --web --headless
-  continueOnError: true
-  displayName: Run smoke tests
-  condition: and(succeeded(), eq(variables['VSCODE_STEP_ON_IT'], 'false'))
-
 - script: |
     set -e
     AZURE_DOCUMENTDB_MASTERKEY="$(builds-docdb-key-readwrite)" \