Revert of [Android] Update all Robolectric tests to Robolectric 3.0

chrome/android/junit/src/org/chromium/chrome/browser/offlinepages/OfflinePageTestRunner.java

Index: chrome/android/junit/src/org/chromium/chrome/browser/offlinepages/OfflinePageTestRunner.java
diff --git a/chrome/android/junit/src/org/chromium/chrome/browser/offlinepages/OfflinePageTestRunner.java b/chrome/android/junit/src/org/chromium/chrome/browser/offlinepages/OfflinePageTestRunner.java
deleted file mode 100644
index bf13eb12fab9aeff18914b2ac79f8cacf538f1ce..0000000000000000000000000000000000000000
--- a/chrome/android/junit/src/org/chromium/chrome/browser/offlinepages/OfflinePageTestRunner.java
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.chrome.browser.offlinepages;
-
-import org.chromium.testing.local.LocalRobolectricTestRunner;
-import org.junit.runners.model.InitializationError;
-import org.robolectric.internal.bytecode.InstrumentationConfiguration;
-
-/**
- * Custom Robolectric test runner that instruments the com.google.android.gms.gcm package
- * so Shadows of those classes can be created.
- */
-public class OfflinePageTestRunner extends LocalRobolectricTestRunner {
-
-    /**
-     * OfflinePageTestRunner constructor
-     */
-    public OfflinePageTestRunner(Class<?> testClass) throws InitializationError {
-        super(testClass);
-    }
-
-    @Override
-    public InstrumentationConfiguration createClassLoaderConfig() {
-        InstrumentationConfiguration.Builder builder = InstrumentationConfiguration.newBuilder();
-        builder.addInstrumentedPackage("com.google.android.gms.gcm");
-        return builder.build();
-    }
-}