Silence initial position and duration of voicemail seekbar by default.

Currently the information is non-sensical, and does not make sense being
read out loud by default.

Bug: 25127953
Change-Id: Ibd0d84ab0f0bb8b203cb19c0949ca2dfe5fe1bbe
diff --git a/res/layout/voicemail_playback_layout.xml b/res/layout/voicemail_playback_layout.xml
index 54493f1..bb7fe34 100644
--- a/res/layout/voicemail_playback_layout.xml
+++ b/res/layout/voicemail_playback_layout.xml
@@ -41,7 +41,8 @@
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
             android:textSize="14sp"
-            android:paddingTop="@dimen/voicemail_playback_top_padding" />
+            android:paddingTop="@dimen/voicemail_playback_top_padding"
+            android:importantForAccessibility="no" />
 
         <LinearLayout
             android:layout_width="0dp"
@@ -105,7 +106,8 @@
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
         android:textSize="14sp"
-        android:paddingTop="@dimen/voicemail_playback_top_padding" />
+        android:paddingTop="@dimen/voicemail_playback_top_padding"
+        android:importantForAccessibility="no" />
 
     </LinearLayout>