suppress A matching Triton is not available message

you can all now stop worrying about it

webui.py

 import os
 import sys
-import threading
 import time
 import importlib
 import signal
@@ -10,6 +9,9 @@ from fastapi.middleware.cors import CORSMiddleware
 from fastapi.middleware.gzip import GZipMiddleware
 from packaging import version
 
+import logging
+logging.getLogger("xformers").addFilter(lambda record: 'A matching Triton is not available' not in record.getMessage())
+
 from modules import import_hook, errors, extra_networks
 from modules import extra_networks_hypernet, ui_extra_networks_hypernets, ui_extra_networks_textual_inversion
 from modules.call_queue import wrap_queued_call, queue_lock, wrap_gradio_gpu_call