Revert of [Android] JUnit runner + gyp changes.

testing/android/junit/java/src/org/chromium/testing/local/PackageFilter.java

Index: testing/android/junit/java/src/org/chromium/testing/local/PackageFilter.java
diff --git a/testing/android/junit/java/src/org/chromium/testing/local/PackageFilter.java b/testing/android/junit/java/src/org/chromium/testing/local/PackageFilter.java
deleted file mode 100644
index 4d6a580d47f587708ac2f4b0301c276837b89b6c..0000000000000000000000000000000000000000
--- a/testing/android/junit/java/src/org/chromium/testing/local/PackageFilter.java
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright 2014 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.testing.local;
-
-import org.junit.runner.Description;
-import org.junit.runner.manipulation.Filter;
-
-/**
- *  Filters tests based on the package.
- */
-class PackageFilter extends Filter {
-
-    private final String mFilterString;
-
-    /**
-     *  Creates the filter.
-     */
-    public PackageFilter(String filterString) {
-        mFilterString = filterString;
-    }
-
-    /**
-     *  Determines whether or not a test with the provided description should
-     *  run based on its package.
-     */
-    @Override
-    public boolean shouldRun(Description description) {
-        return description.getTestClass().getPackage().getName().equals(mFilterString);
-    }
-
-    /**
-     *  Returns a description of this filter.
-     */
-    @Override
-    public String describe() {
-        return "package-filter: " + mFilterString;
-    }
-
-}