Remove ContactPrefs from DialpadFragment

DialpadFragment currently instantiates an instance of ContactsPrefs
that is not needed.

Change-Id: I8207f8d55c578a748c5edab1f722b18b5d38b48b
(cherry picked from commit 637e7d3f6fb3b23669bbfb79776d04b50d74758c)
diff --git a/src/com/android/dialer/dialpad/DialpadFragment.java b/src/com/android/dialer/dialpad/DialpadFragment.java
index 093cde2..d736f7f 100644
--- a/src/com/android/dialer/dialpad/DialpadFragment.java
+++ b/src/com/android/dialer/dialpad/DialpadFragment.java
@@ -188,8 +188,6 @@
     /** Stream type used to play the DTMF tones off call, and mapped to the volume control keys */
     private static final int DIAL_TONE_STREAM_TYPE = AudioManager.STREAM_DTMF;
 
-    private ContactsPreferences mContactsPrefs;
-
     private OnDialpadQueryChangedListener mDialpadQueryListener;
 
     /**
@@ -350,7 +348,6 @@
     public void onCreate(Bundle state) {
         super.onCreate(state);
         mFirstLaunch = true;
-        mContactsPrefs = new ContactsPreferences(getActivity());
         mCurrentCountryIso = GeoUtil.getCurrentCountryIso(getActivity());
 
         try {