Disabling Dialer ringing feature

+ Need to remove for DP1

Bug=27367182
Bug=27353237
Change-Id: If370c942534bba3fd98c11447e1a83a2bf0cdfe1
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index ac5d042..cbe4e1b 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -321,7 +321,7 @@
                  android:encryptionAware="true" >
             <meta-data android:name="android.telecom.IN_CALL_SERVICE_UI" android:value="true" />
             <meta-data android:name="android.telecom.IN_CALL_SERVICE_RINGING"
-                android:value="true"/>
+                android:value="false"/>
             <intent-filter>
                 <action android:name="android.telecom.InCallService"/>
             </intent-filter>