[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

tests/inferers/test_zarr_avg_merger.py

@@ -481,5 +481,3 @@ def test_deprecated_count_compressor_warning(self):
 
                 # Only check for warnings under zarr v2
                 self.assertTrue(any("count_compressor" in str(warning.message) for warning in w))
-
-