Undo all monty changes now it has been fixed

pyproject.toml

@@ -167,5 +167,4 @@ filterwarnings = [
     "ignore:.*The 'app' shortcut is now deprecated.*:DeprecationWarning", # Raised by httpx for test client code; would rather not force upgrade of httpx to deal with it for now
     "ignore::pytest.PytestUnraisableExceptionWarning",  # Started raising with pytest 8.2.1, seemingly related to anyio warnings
     "ignore:.*Unclosed.*:ResourceWarning", # Also started raising with pytest 8.2.1, seemingly related to anyio warnings
-    "ignore:.*This function should have been removed on 2025-01-01*:DeprecationWarning", # Raised by monty, who knows when it will actually be removed
 ]

tests/adapters/conftest.py

@@ -5,19 +5,6 @@
 import requests
 
 
-@pytest.fixture(autouse=True, scope="module")
-def set_ci_env(monkeypatch):
-    """Super unpleasant workaround to deal with monty's deprecation behaviour,
-    see:
-
-        - https://github.com/materialsproject/pymatgen/issues/4243
-        - https://github.com/materialsvirtuallab/monty/pull/735
-
-    """
-    monkeypatch.delenv("CI", raising=False)
-    yield
-
-
 @pytest.fixture
 def mock_requests_get(monkeypatch):
     """Patch requests.get to return the desired mock response."""