Benchmarks aren't discoverable anymore

conftest.py

@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: MIT
 
 from datetime import timedelta
-from importlib.util import find_spec
 
 import pytest
 
@@ -31,12 +30,6 @@ def pytest_configure(config):
     )
     settings.load_profile("patience")
 
-    # CodSpeed doesn't work on all supported platforms.
-    if find_spec("pytest_codspeed") is None:
-        config.addinivalue_line(
-            "markers", "benchmark: This marker does nothing."
-        )
-
 
 collect_ignore = []
 if not PY_3_10_PLUS: