Removes files from //build that we don't need

build/android/findbugs_filter/findbugs_exclude.xml

Index: build/android/findbugs_filter/findbugs_exclude.xml
diff --git a/build/android/findbugs_filter/findbugs_exclude.xml b/build/android/findbugs_filter/findbugs_exclude.xml
deleted file mode 100644
index dbff9d9667fed37fc295c175aab79170b8c58f11..0000000000000000000000000000000000000000
--- a/build/android/findbugs_filter/findbugs_exclude.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-  Copyright (c) 2012 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.
--->
-
-<!--
-Documentation: http://findbugs.sourceforge.net/manual/filter.html
-In particular, ~ at the start of a string means it's a regex.
--->
-<FindBugsFilter>
-  <!-- Skip the generated resource classes (including nested classes). -->
-  <Match>
-    <Class name="~.*\.R(\$\w+)?" />
-  </Match>
-  <Match>
-    <Class name="~org\.chromium\..*\.Manifest(\$\w+)?" />
-  </Match>
-  <Bug pattern="DM_STRING_CTOR" />
-  <!-- Ignore "reliance on default String encoding" warnings, as we're not multi-platform -->
-  <Bug pattern="DM_DEFAULT_ENCODING" />
-</FindBugsFilter>