Drop parallel-channel filtering note from stats

README.md

@@ -44,7 +44,7 @@ codebase.
 
 ## Statistics
 
-- **Events:** 693 277 (≈554k after filtering parallel channels).
+- **Events:** 693 277.
 - **Unique nodes:** 36 170.
 - **Class distribution at prediction time** (over open edges):
   open ≈83 %, mutual ≈9 %, forced ≈8 %.