fix: Revert change from seperate feature

neps/optimizers/base_optimizer.py

@@ -6,7 +6,6 @@
 from typing_extensions import Self
 from contextlib import contextmanager
 from pathlib import Path
-from neps.optimizers.ask_and_tell import AskAndTellWrapper
 
 from neps.utils.types import ConfigResult, RawConfig, ERROR, ResultDict
 from neps.utils.files import serialize, deserialize
@@ -122,6 +121,3 @@ def using_state(self, state_file: Path) -> Iterator[Self]:
     def is_out_of_budget(self) -> bool:
         """Check if the optimizer has used all of its budget, if any."""
         return self.budget is not None and self.used_budget >= self.budget
-
-    def to_ask_and_tell(self, working_dir: Path | str) -> AskAndTellWrapper:
-        return AskAndTellWrapper(working_dir=Path(working_dir), optimizer=self)