Delete unused classes

Change-Id: I3976a7c742816637b1cc03ce3a85c5419a5e59f7
diff --git a/src/com/android/telecomm/CallsManager.java b/src/com/android/telecomm/CallsManager.java
index 106f9af..92c247e 100644
--- a/src/com/android/telecomm/CallsManager.java
+++ b/src/com/android/telecomm/CallsManager.java
@@ -78,8 +78,6 @@
 
     private final CallsManagerListener mInCallController;
 
-    private VoicemailManager mVoicemailManager;
-
     private final List<OutgoingCallValidator> mOutgoingCallValidators = Lists.newArrayList();
 
     private final List<IncomingCallValidator> mIncomingCallValidators = Lists.newArrayList();
diff --git a/src/com/android/telecomm/VoicemailManager.java b/src/com/android/telecomm/VoicemailManager.java
deleted file mode 100644
index e998519..0000000
--- a/src/com/android/telecomm/VoicemailManager.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.android.telecomm;
-
-/** Package private */
-class VoicemailManager {
-}