Remove unused imports

src/serena/agent.py

@@ -8,7 +8,6 @@ import os
 import platform
 import sys
 import traceback
-import warnings
 from abc import ABC
 from collections import defaultdict
 from collections.abc import Callable, Generator, Iterable, Iterator

test/multilspy/test_basic.py

@@ -6,7 +6,6 @@ like request_references using the test repository.
 """
 
 import os
-from pathlib import Path
 
 from multilspy.language_server import SyncLanguageServer
 from serena.text_utils import LineType