remove default api key

Author: vvincent1234

webui.py

@@ -425,13 +425,13 @@ def create_ui(theme_name="Ocean"):
                     with gr.Row():
                         llm_base_url = gr.Textbox(
                             label="Base URL",
-                            value=os.getenv(f"{llm_provider.value.upper()}_BASE_URL ", ""),  # Default to .env value
+                            value='',
                             info="API endpoint URL (if required)"
                         )
                         llm_api_key = gr.Textbox(
                             label="API Key",
                             type="password",
-                            value=os.getenv(f"{llm_provider.value.upper()}_API_KEY", ""),  # Default to .env value
+                            value='',
                             info="Your API key (leave blank to use .env)"
                         )