comment vector_db delete collection

pdf_processor.py

@@ -175,8 +175,8 @@ class PDFProcessor:
                 _, embeddings = self.set_llm(ai_model, type_model, api_key, project_id_watsonx)
 
                 #delete all documents from the vectorstore
-                if vectorstore:
-                    vectorstore.delete_collection()
+                #if vectorstore:
+                #    vectorstore.delete_collection()
                 
                 chromadb.api.client.SharedSystemClient.clear_system_cache()
                 new_client = chromadb.EphemeralClient()