Removing objective_thread_pitch from scopes_info

tests/test_scope_guide.py

@@ -49,7 +49,6 @@ async def _seed_guide_data(db):
             magnification_min=3,
             magnification_max=18,
             objective_lens_diameter_mm=50,
-            objective_thread_pitch="M52x0.75",
         )
     )
 
@@ -222,7 +221,6 @@ async def test_scopes_page_renders_rows_and_fits(
     assert "Alpha 3-18x50" in body  # scope row
     assert "Flip cover 50mm" in body  # a matching part in a fit column
     assert "fit-badge-exact" in body  # the exact fit badge
-    assert "M52x0.75" in body  # scope info: objective thread
     assert "3-18" in body  # magnification range, integral values un-padded
 
 
@@ -294,9 +292,7 @@ async def test_scopes_page_renders_objective_attachment_point_thread(
     resp = await client.get("/scopes")
     assert resp.status_code == 200
     body = resp.text
-    # The attachment point's thread spec wins over ScopeInfo.objective_thread_pitch.
     assert "M44.0×0.5" in body
-    assert "M52x0.75" not in body
 
 
 @pytest.mark.asyncio