Don't use internal VisibleForTesting annotation

Test
1) install GoogleContactsTest.apk
2) $ adb shell am instrument  -w com.google.android.contacts.tests/android.test.InstrumentationTestRunner

Bug: 18777272
Change-Id: Ifd0cfc061f14d7cf4f476e837543819ad199a924
diff --git a/src/com/android/contacts/interactions/CallLogInteractionsLoader.java b/src/com/android/contacts/interactions/CallLogInteractionsLoader.java
index c8e26e9..46cd315 100644
--- a/src/com/android/contacts/interactions/CallLogInteractionsLoader.java
+++ b/src/com/android/contacts/interactions/CallLogInteractionsLoader.java
@@ -26,7 +26,7 @@
 import android.telephony.PhoneNumberUtils;
 import android.text.TextUtils;
 
-import com.android.internal.annotations.VisibleForTesting;
+import com.google.common.annotations.VisibleForTesting;
 
 import java.util.ArrayList;
 import java.util.Collections;