Fix up a few more lint warnings.

chrome/android/shell/res/drawable/progress_bar.xml

Index: chrome/android/shell/res/drawable/progress_bar.xml
diff --git a/chrome/android/shell/res/drawable/progress_bar.xml b/chrome/android/shell/res/drawable/progress_bar.xml
deleted file mode 100644
index 58f6b541914cdf9d6df03cb2f96e8e59667d0c8d..0000000000000000000000000000000000000000
--- a/chrome/android/shell/res/drawable/progress_bar.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-     Copyright 2015 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.
--->
-
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:id="@android:id/secondaryProgress">
-        <clip android:gravity="left">
-            <shape>
-                <solid android:color="@color/material_deep_teal_200" />
-            </shape>
-        </clip>
-    </item>
-    <item android:id="@android:id/progress">
-        <clip android:gravity="left">
-            <shape>
-                <solid android:color="@color/material_deep_teal_500" />
-            </shape>
-        </clip>
-    </item>
-</layer-list>