remove big sur tests

azure-pipelines.yml

@@ -73,6 +73,5 @@ jobs:
     jobName: "vintage_agent"
     kitchenFile: kitchen.yml
     platforms:
-      - big-sur-x86
       - monterey-x86
-    suites: ${{ parameters.kitchenSuites }}
+    suites: ${{ parameters.kitchenSuites }}

kitchen.yml

@@ -20,10 +20,6 @@ verifier:
   - test/integration/default
 
 platforms:
-- name: big-sur-x86
-  driver:
-    box: microsoft/macos-big-sur
-
 - name: monterey-x86
   driver:
     box: microsoft/macos-monterey