fix: remove performance tests

Signed-off-by: szymonmaszke <[email protected]>

Author: szymonmaszke

tests/test_cogeol.py

@@ -7,8 +7,6 @@
 
 from __future__ import annotations
 
-import time
-
 import pytest
 
 import cogeol
@@ -33,18 +31,6 @@ def test_incorrect_cache_duration() -> None:
         _ = cogeol.versions(cache_duration=-1)
 
 
-def test_speedup() -> None:
-    """Test the speedup done by cache."""
-    start = time.time()
-    _ = cogeol.versions(cache_duration=0)
-    middle = time.time()
-    _ = cogeol.versions(cache_duration=None)
-    end = time.time()
-    no_cache = middle - start
-    cache = end - middle
-    assert cache < no_cache
-
-
 @pytest.mark.parametrize("cache_duration", (3600, 0, None))
 def test_scientific(cache_duration: None | int) -> None:
     """Test the scientific versioning (Scientific Python SPEC0).