remove 'automatically'

spec.bs

@@ -2502,19 +2502,18 @@ container/fenced navigable=] will fail, as outlined in [[#navigation-patch]].
 Serving a document resource that gets loaded into a {{Document}} that is not [=same origin=] with
 its [=Document/browsing context=]'s [=fenced frame config instance=]'s [=fenced frame config
 instance/mapped url=] with the <dfn
-http-header><code>Allow-Fenced-Frame-Automatic-Beacons</code></dfn> HTTP response header
-automatically opts in the {{Document}} to having automatic beacon events trigger when it performs
-navigations. This header is a [=structured header=] whose value must be a [=structured
-header/boolean=].
+http-header><code>Allow-Fenced-Frame-Automatic-Beacons</code></dfn> HTTP response header opts in the
+{{Document}} to having automatic beacon events trigger when it performs navigations. This header is
+a [=structured header=] whose value must be a [=structured header/boolean=].
 
 <h4 id=allow-cross-origin-reporting>The
 \`<a http-header><code>Allow-Cross-Origin-Event-Reporting</code></a>\` HTTP response header</h4>
 
 Serving a document resource that gets loaded into a <{fencedframe}> by a [=fenced frame config
 instance=] with the <dfn http-header><code>Allow-Cross-Origin-Event-Reporting</code></dfn> HTTP
-response header automatically opts in the {{Document}}'s cross-origin [=child navigables=] to be
-able to send {{Fence/reportEvent()}} beacons. This header is a [=structured header=] whose value
-must be a [=structured header/boolean=].
+response header opts in the {{Document}}'s cross-origin [=child navigables=] to be able to send
+{{Fence/reportEvent()}} beacons. This header is a [=structured header=] whose value must be a
+[=structured header/boolean=].
 
 <h4 id=coop-coep>COOP, COEP, and cross-origin isolation</h4>