Delete Broken AudioManagerTest#testMuteSolo

Bug 3188260

There is not a way using the public API to determine what streams can
be muted, so remove the broken test.

Change-Id: I5ed6c5eb65ca988fbc467d3586a434a2e3924846
diff --git a/tests/tests/media/src/android/media/cts/AudioManagerTest.java b/tests/tests/media/src/android/media/cts/AudioManagerTest.java
index cfa9293..b4053cf 100644
--- a/tests/tests/media/src/android/media/cts/AudioManagerTest.java
+++ b/tests/tests/media/src/android/media/cts/AudioManagerTest.java
@@ -38,7 +38,6 @@
 
 import com.android.cts.stub.R;
 
-import dalvik.annotation.BrokenTest;
 import dalvik.annotation.TestLevel;
 import dalvik.annotation.TestTargetClass;
 import dalvik.annotation.TestTargetNew;
@@ -47,7 +46,6 @@
 
 import android.app.cts.CTSResult;
 import android.content.Context;
-import android.content.Intent;
 import android.media.AudioManager;
 import android.media.MediaPlayer;
 import android.provider.Settings;
@@ -87,32 +85,6 @@
     @TestTargets({
         @TestTargetNew(
             level = TestLevel.COMPLETE,
-            method = "setStreamMute",
-            args = {int.class, boolean.class}
-        ),
-        @TestTargetNew(
-            level = TestLevel.COMPLETE,
-            method = "setStreamSolo",
-            args = {int.class, boolean.class}
-        )
-    })
-    @BrokenTest("flaky")
-    public void testMuteSolo() throws Exception {
-        /**
-         * this test must be run on screen unlocked model
-         */
-        AudioManagerStub.setCTSResult(this);
-        Intent intent = new Intent();
-        intent.setClass(mContext, AudioManagerStub.class);
-        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        mContext.startActivity(intent);
-        mSync.waitForResult();
-        assertEquals(CTSResult.RESULT_OK, mResultCode);
-    }
-
-    @TestTargets({
-        @TestTargetNew(
-            level = TestLevel.COMPLETE,
             method = "setMicrophoneMute",
             args = {boolean.class}
         ),