Update override file to simplify it

Author: mikesir87

.labspace/compose.override.yaml

@@ -2,17 +2,3 @@ services:
   configurator:
     environment:
       PROJECT_CLONE_URL: https://github.com/mikesir87/labspace-container-supported-development
-
-  workspace:
-    image: dockersamples/labspace-workspace-java
-    models:
-      gemma3:
-        model_var: OPENAI_MODEL
-        endpoint_var: OPENAI_BASE_URL
-    ports: !override
-      - 8080:8080
-      - 8085:8085
-
-models:
-  gemma3:
-    model: ai/gemma3:4B-F16