Removed unused customization class

Author: jpalvarezl

.typespec.azure/tspconfig.yaml

@@ -24,5 +24,5 @@ options:
     generate-samples: false
     custom-types-subpackage: "implementation.models"
     # custom-types: "FunctionCallPreset,FileListResponse,OpenAIPageableListOfBatch"
-    customization-class: customization/src/main/java/OpenAICustomizations.java
+    # customization-class: customization/src/main/java/OpenAICustomizations.java
     flavor: azure