Update readme for separate llm engine executables

sia/__main__.py

@@ -17,7 +17,6 @@ from .web.websockets import Websockets
 from .web_agent import WebAgent
 from .web_io_buffer import WebIOBuffer
 from .working_memory import WorkingMemory
-from .xml_validator import XMLValidator
 
 class Main:
     @classmethod
@@ -81,7 +80,6 @@ class Main:
             working_memory=self._working_memory,
             metrics=SystemMetrics(),
             llms=self._llms,
-            validator=XMLValidator(self._action_schema),
             parser=ResponseParser(config.work_dir, self._io_buffer),
             iteration_logger=IterationLogger(self._config.iterations_dir, self._system_prompt, self._action_schema),
         )