remove duplicate code (#20664)

* remove dupe code

* fix step name

* fix errors

* comment out arc

* fix timeout issue

* fix typo

* update name

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

@@ -147,19 +147,9 @@ steps:
       NO_CLEANUP=1 \
       VSCODE_REMOTE_SERVER_PATH="$(agent.builddirectory)/azuredatastudio-reh-linux-x64" \
       DISPLAY=:10 ./scripts/test-extensions-unit.sh --build --tfs "Extension Unit Tests"
-    displayName: 'Run Stable Extension Unit Tests'
+    displayName: 'Run Extension Unit Tests'
     condition: and(succeeded(), eq(variables['RUN_TESTS'], 'true'))
 
-  - script: |
-      set -e
-      APP_ROOT=$(agent.builddirectory)/azuredatastudio-linux-x64
-      APP_NAME=$(node -p "require(\"$APP_ROOT/resources/app/product.json\").applicationName")
-      INTEGRATION_TEST_ELECTRON_PATH="$APP_ROOT/$APP_NAME" \
-      DISPLAY=:10 ./scripts/test-extensions-unit-unstable.sh
-    displayName: 'Run Unstable Extension Unit Tests'
-    continueOnError: true
-    condition: and(succeeded(), eq(variables['RUN_UNSTABLE_TESTS'], 'true'))
-
   - bash: |
       set -e
       mkdir -p $(Build.ArtifactStagingDirectory)/logs/linux-x64