diff --git a/lambdas/shared/tests/test_preview.py b/lambdas/shared/tests/test_preview.py
index <HASH>..<HASH> 100644
--- a/lambdas/shared/tests/test_preview.py
+++ b/lambdas/shared/tests/test_preview.py
@@ -34,7 +34,6 @@ def iterate_chunks(file_obj, chunk_size=4096):
 
 class TestPreview(TestCase):
     """Tests the preview functions"""
-    # 15_000 is magic = exact number of cells (cols*rows) in test file
     def test_extract_parquet(self):
         file = BASE_DIR / 'amazon-reviews-1000.snappy.parquet'
         cell_value = '<td>TSD Airsoft/Paintball Full-Face Mask, Goggle Lens</td>'
Remove magic comment from test (#<I>)