Fix erroroneous categories/parents for <style> in the element index

These were true when the index of elements was introduced, but obsoleted
when #1226 removed the scoped
attribute.

Fixes #1521.

source

@@ -115358,11 +115358,9 @@ interface <dfn>External</dfn> {
     <tr>
      <th><code>style</code></th>
      <td>Embedded styling information</td>
-     <td><span data-x="Metadata content">metadata</span>;
-         <span data-x="Flow content">flow</span>*</td>
+     <td><span data-x="Metadata content">metadata</span></td>
      <td><code>head</code>;
-         <code>noscript</code>*;
-         <span data-x="flow content">flow</span>*</td>
+         <code>noscript</code>*</td>
      <td>varies*</td>
      <td><span data-x="global attributes">globals</span>;
          <code data-x="attr-style-media">media</code>;
@@ -119565,6 +119563,7 @@ INSERT INTERFACES HERE
   Marco Zehe,
   Marcus Bointon,
   Marijn Kruisselbrink,
+  Mark Amery,
   Mark Birbeck,
   Mark Davis,
   Mark Miller,