Remove duplicate ES status info in README.md

README.md

@@ -129,9 +129,6 @@ and many more.
 
 #### ECMAScript Stage 3 (no version yet)
 
-- ✔ Import attributes
-- ✔ JSON modules
-- ✔ Resizable and growable ArrayBuffers
 - ✔ Import attributes
 - ✔ JSON modules
 - ✔ Set methods (`intersection`, `union`, `difference`, `symmetricDifference`, `isSubsetOf`, `isSupersetOf`, `isDisjointFrom`)