Remove unneeded stringprintf.h usage in chrome/ and net/

chrome/browser/browsing_data/browsing_data_counter_utils_unittest.cc

 // 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.
 
 #include "chrome/browser/browsing_data/browsing_data_counter_utils.h"
 
 #include <string>
 #include <vector>
 
 #include "base/message_loop/message_loop.h"
-#include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "extensions/features/features.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if BUILDFLAG(ENABLE_EXTENSIONS)
 #include "base/strings/string_split.h"
 #include "chrome/browser/browsing_data/hosted_apps_counter.h"
@@ skipping 47 matching lines @@
     HostedAppsCounter::HostedAppsResult result(
         &counter,
         apps.size(),
         examples);
 
     base::string16 output = GetChromeCounterTextFromResult(&result);
     EXPECT_EQ(output, base::ASCIIToUTF16(test_case.expected_output));
   }
 }
 #endif