Actually, jbossas/trunk/ejb3/src/resources/META-INF/ejb-deployers-beans.xml has it.
I ran the ejb3 installer which overrode it with the projects/ejb3/trunk/core/src/main/resources/META-INF/ejb3-deployers-beans.xml

So, the one in the ejb3 project looks to be out of date.

Index: src/main/resources/META-INF/ejb3-deployers-beans.xml
===================================================================
--- src/main/resources/META-INF/ejb3-deployers-beans.xml (revision 74605)
+++ src/main/resources/META-INF/ejb3-deployers-beans.xml (working copy)
@@ -1,14 +1,35 @@
 <?xml version="1.0" encoding="UTF-8"?>

 <!--
- JCA Deployers
+ EJB3 Deployers
 -->
 <deployment xmlns="urn:jboss:bean-deployer:2.0">

 <bean name="DefaultPersistenceProperties" class="org.jboss.ejb3.DefaultPersistenceProperties"/>

 <bean name="Ejb3Deployer" class="org.jboss.ejb3.deployers.Ejb3Deployer">
- <property name="type">ejb3x</property>
+ <install bean="ManagedDeploymentCreator" method="addVersionedAttachmentType">
+ <parameter>
+ <value>org.jboss.metadata.ejb.jboss.JBossMetaData</value>
+ </parameter>
+ <parameter>
+ <value>ejb3x</value>
+ </parameter>
+ <parameter>
+ <value>3.*</value>
+ </parameter>
+ <parameter>
+ <value>getEjbVersion</value>
+ </parameter>
+ </install>
+ <uninstall bean="ManagedDeploymentCreator" method="removeVersionedAttachmentType">
+ <parameter>
+ <value>org.jboss.metadata.ejb.jboss.JBossMetaData</value>
+ </parameter>
+ <parameter>
+ <value>ejb3x</value>
+ </parameter>
+ </uninstall>
 <property name="kernel"><inject bean="jboss.kernel:service=Kernel"/></property>
 <property name="mbeanServer"><inject bean="JMXKernel" property="mbeanServer"/></property>
 <property name="defaultPersistenceProperties"><inject bean="DefaultPersistenceProperties" property="properties"/></property>
@@ -16,6 +37,8 @@
 <property name="poolFactoryRegistry"><inject bean="EJB3PoolFactoryRegistry" /></property>
 <property name="remoteProxyFactoryRegistry"><inject bean="EJB3RemoteProxyFactoryRegistry" /></property>
 <property name="persistenceManagerFactoryRegistry"><inject bean="EJB3PersistenceManagerFactoryRegistry" /></property>
+ <!-- Should war deployments be scanned for annotated ejbs -->
+ <property name="scanWars">false</property>

 <!--

@@ -122,21 +145,30 @@
 </bean>

 <bean name="JBossClientParsingDeployer" class="org.jboss.ejb3.deployers.JBossClientParsingDeployer">
- <property name="type">car</property>
 <depends>AppClientParsingDeployer</depends>
- </bean>
-
- <bean name="AppClientScanningDeployer" class="org.jboss.ejb3.deployers.AppClientScanningDeployer">
- <depends>JBossClientParsingDeployer</depends>
- </bean>
-
+ </bean>
+ <bean name="MergedJBossClientMetaDataDeployer" class="org.jboss.ejb3.deployers.MergedJBossClientMetaDataDeployer">
+ <depends>AppClientParsingDeployer</depends>
+ </bean>
+
 <bean name="Ejb3ClientDeployer" class="org.jboss.ejb3.deployers.Ejb3ClientDeployer">
- <property name="type">car</property>
+ <install bean="ManagedDeploymentCreator" method="addAttachmentType">
+ <parameter>
+ <value>org.jboss.metadata.client.jboss.JBossClientMetaData</value>
+ </parameter>
+ <parameter>
+ <value>car</value>
+ </parameter>
+ </install>
+ <uninstall bean="ManagedDeploymentCreator" method="removeAttachmentType">
+ <parameter>
+ <value>org.jboss.metadata.client.jboss.JBossClientMetaData</value>
+ </parameter>
+ </uninstall>
 <property name="kernel"><inject bean="jboss.kernel:service=Kernel"/></property>
 <property name="mbeanServer"><inject bean="JMXKernel" property="mbeanServer"/></property>
 <!-- TODO: check depends -->
 <depends>AspectLibrary</depends>
- <depends>AppClientScanningDeployer</depends>
 </bean>

 <!-- EJB3 Cache Factory Registry -->
@@ -227,27 +259,6 @@
 </entry>
 </map>
 </property>
- <property name="loadBalancePolicies">
- <!-- Define each of the registered factories -->
- <map class="java.util.HashMap" keyClass="java.lang.String"
- valueClass="java.lang.Class">
- <!-- RoundRobin -->
- <entry>
- <key>RoundRobin</key>
- <value>org.jboss.ha.client.loadbalance.RoundRobin</value>
- </entry>
- <!-- RandomRobin -->
- <entry>
- <key>RandomRobin</key>
- <value>org.jboss.ha.client.loadbalance.RandomRobin</value>
- </entry>
- <!-- FirstAvailable -->
- <entry>
- <key>FirstAvailable</key>
- <value>org.jboss.ha.client.loadbalance.FirstAvailable</value>
- </entry>
- </map>
- </property>
 </bean>

 <!-- EJB3 Persistence Manager Factory Registry -->
@@ -269,7 +280,19 @@

 <!-- Persistence Unit deployers -->
 <bean name="PersistenceUnitParsingDeployer" class="org.jboss.ejb3.deployers.PersistenceUnitParsingDeployer">
- <property name="type">car</property>
+ <install bean="ManagedDeploymentCreator" method="addAttachmentType">
+ <parameter>
+ <value>org.jboss.metadata.jpa.spec.PersistenceMetaData</value>
+ </parameter>
+ <parameter>
+ <value>par</value>
+ </parameter>
+ </install>
+ <uninstall bean="ManagedDeploymentCreator" method="removeAttachmentType">
+ <parameter>
+ <value>org.jboss.metadata.jpa.spec.PersistenceMetaData</value>
+ </parameter>
+ </uninstall>
 </bean>

 </deployment>