Revert of [Extensions] More bindings improvements

extensions/renderer/module_system_test.cc

Index: extensions/renderer/module_system_test.cc
diff --git a/extensions/renderer/module_system_test.cc b/extensions/renderer/module_system_test.cc
index 3386ff010c145d4880f5ef8e141f20c4dbf48dcf..06a4d5590460f24d3ec457e47dbc07aa5772bf63 100644
--- a/extensions/renderer/module_system_test.cc
+++ b/extensions/renderer/module_system_test.cc
@@ -11,7 +11,6 @@
 #include <utility>
 
 #include "base/callback.h"
-#include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
@@ -224,7 +223,6 @@
 
 void ModuleSystemTest::SetUp() {
   env_ = CreateEnvironment();
-  base::CommandLine::ForCurrentProcess()->AppendSwitch("test-type");
 }
 
 void ModuleSystemTest::TearDown() {