Audio policy config: remove cross-module device port name uniqueness

This constraint was added due to an incorrect assumption
that device ports were identified by names whereas
they are by the (module,type,address) triplet.

Bug: 69442986
Test: xmllint validates an XML with two identically named devices in
      different modules.
Test: vts-tradefed run commandAndExit vts --module VtsHalAudioV2_0Target -t CheckConfig.audioPolicyConfigurationValidation
Merged-In: I66d890d3c967bead4f2a287202c259009217996a
Change-Id: I66d890d3c967bead4f2a287202c259009217996a
Signed-off-by: Kevin Rocard <krocard@google.com>
(cherry picked from commit 503c3e0a4e6db18aee29bc7a89284f6a0a6d7e56)
diff --git a/audio/2.0/config/audio_policy_configuration.xsd b/audio/2.0/config/audio_policy_configuration.xsd
index 0a52b55..7647cad 100644
--- a/audio/2.0/config/audio_policy_configuration.xsd
+++ b/audio/2.0/config/audio_policy_configuration.xsd
@@ -49,10 +49,6 @@
             <xs:selector xpath="modules/module"/>
             <xs:field xpath="@name"/>
         </xs:key>
-        <xs:key name="devicePortNameGlobalKey">
-            <xs:selector xpath="modules/module/devicePorts/devicePort"/>
-            <xs:field xpath="@tagName"/>
-        </xs:key>
         <xs:unique name="volumeTargetUniqueness">
             <xs:selector xpath="volumes/volume"/>
             <xs:field xpath="@stream"/>
@@ -141,9 +137,6 @@
                     <xs:selector xpath="mixPorts/mixPort"/>
                     <xs:field xpath="@name"/>
                 </xs:unique>
-                <!-- Although this key constraint is redundant with devicePortNameGlobalKey,
-                     the set is used to constraint defaultOutputDevice and attachedDevice
-                     to reference a devicePort of the same module. -->
                 <xs:key name="devicePortNameKey">
                     <xs:selector xpath="devicePorts/devicePort"/>
                     <xs:field xpath="@tagName"/>