fix models for infra

Author: cassiebreviu

infra/ai.yaml

@@ -9,14 +9,6 @@ deployments:
     sku:
       name: Standard
       capacity: 20
-  - name: gpt-4
-    model:
-      format: OpenAI
-      name: gpt-4
-      version: "0613"
-    sku:
-      name: Standard
-      capacity: 20
   - name: text-embedding-ada-002
     model:
       format: OpenAI
@@ -40,4 +32,4 @@ deployments:
       version: "1106-Preview"
     sku:
       name: "Standard"
-      capacity: 10
+      capacity: 10