Revert of MD Settings: enable by default in client

chrome/browser/browser_about_handler_unittest.cc

Index: chrome/browser/browser_about_handler_unittest.cc
diff --git a/chrome/browser/browser_about_handler_unittest.cc b/chrome/browser/browser_about_handler_unittest.cc
index 321fd720b95d79b4e56ad7df47fbf9b951d9c2fe..f9df2dab411a90ea87722d8d63d3efeb72572928 100644
--- a/chrome/browser/browser_about_handler_unittest.cc
+++ b/chrome/browser/browser_about_handler_unittest.cc
@@ -82,9 +82,6 @@
 // Chrome OS defaults to showing Options in a window and including About in
 // Options.
 TEST_F(BrowserAboutHandlerTest, WillHandleBrowserAboutURLForOptionsChromeOS) {
-  base::test::ScopedFeatureList scoped_feature_list;
-  scoped_feature_list.InitAndDisableFeature(features::kMaterialDesignSettings);
-
   std::string chrome_prefix(content::kChromeUIScheme);
   chrome_prefix.append(url::kStandardSchemeSeparator);
   std::vector<AboutURLTestCase> test_cases(
@@ -98,9 +95,6 @@
 
 #else
 TEST_F(BrowserAboutHandlerTest, WillHandleBrowserAboutURLForOptions) {
-  base::test::ScopedFeatureList scoped_feature_list;
-  scoped_feature_list.InitAndDisableFeature(features::kMaterialDesignSettings);
-
   std::string chrome_prefix(content::kChromeUIScheme);
   chrome_prefix.append(url::kStandardSchemeSeparator);
   std::vector<AboutURLTestCase> test_cases(