fix: Remove setting of non-writable adapter Class property

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

main.py

@@ -142,11 +142,8 @@ async def set_adapter_alias(alias):
     try:
         await adapter_props.call_set(ADAPTER_IFACE, 'Alias', Variant('s', alias))
         logging.info(f"Successfully set adapter alias to '{alias}'")
-        # Set the adapter class to Audio/Video, Loudspeaker to get a speaker icon
-        await adapter_props.call_set(ADAPTER_IFACE, 'Class', Variant('u', 0x240404))
-        logging.info("Successfully set adapter class for speaker icon")
     except Exception as e:
-        logging.error(f"Failed to set adapter properties: {e}")
+        logging.error(f"Failed to set adapter alias: {e}")
 
 
 # --- End Bluetooth ---