Remove owner_content_access_mode.modified event from broker filter

Also remove the owner_content_access_mode.modified event as it is
no longer needed. Users cannot toggle between SCA and entitlement
modes anymore, making this event irrelevant.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: 2 people

src/roles/candlepin/templates/broker.xml.j2

@@ -129,8 +129,7 @@
                 <address>event.default</address>
                 <filter string="
                     (EVENT_TARGET='POOL' and EVENT_TYPE='CREATED') OR
-                    (EVENT_TARGET='POOL' and EVENT_TYPE='DELETED') OR
-                    (EVENT_TARGET='OWNER_CONTENT_ACCESS_MODE' and EVENT_TYPE='MODIFIED')
+                    (EVENT_TARGET='POOL' and EVENT_TYPE='DELETED')
                 "/>
                 <forwarding-address>katello.candlepin</forwarding-address>
             </divert>