Remove async as a keyword

saschanaz · web-flow · commit da6f3b3bc556 · 2025-07-23T09:43:49.000+09:00
Fixes #1508.
diff --git a/index.bs b/index.bs
@@ -469,7 +469,6 @@ underscore.
 
 <pre class="grammar" id="prod-ArgumentNameKeyword">
     ArgumentNameKeyword :
-        "async"
         "attribute"
         "callback"
         "const"
@@ -1807,7 +1806,6 @@ are applicable only to regular attributes:
 
 <pre class="grammar" id="prod-AttributeNameKeyword">
     AttributeNameKeyword :
-        "async"
         "required"
 </pre>
 
