Remove AMR NB encoding from SSIM quality test

This currently causes the test to fail on Pixel 6 Pro running a recent S build
SQ1D.220205.004.

There is no need to test audio transcoding while we are measuring video
quality.

PiperOrigin-RevId: 435635314

libraries/transformer/src/androidTest/java/androidx/media3/transformer/mh/TranscodeQualityTest.java

@@ -39,10 +39,8 @@ public final class TranscodeQualityTest {
     Transformer transformer =
         new Transformer.Builder(context)
             .setTransformationRequest(
-                new TransformationRequest.Builder()
-                    .setVideoMimeType(MimeTypes.VIDEO_H265)
-                    .setAudioMimeType(MimeTypes.AUDIO_AMR_NB)
-                    .build())
+                new TransformationRequest.Builder().setVideoMimeType(MimeTypes.VIDEO_H265).build())
+            .setRemoveAudio(true)
             .build();
 
     TransformationTestResult result =