Revert of Allow autotest extension to access system.display

extensions/browser/api/system_display/system_display_api.cc

Index: extensions/browser/api/system_display/system_display_api.cc
diff --git a/extensions/browser/api/system_display/system_display_api.cc b/extensions/browser/api/system_display/system_display_api.cc
index 373262196dde93d4f658b6c3dcc45947218df486..66198acabcb305dbdd68c3739c31858c22635a4e 100644
--- a/extensions/browser/api/system_display/system_display_api.cc
+++ b/extensions/browser/api/system_display/system_display_api.cc
@@ -16,7 +16,6 @@
 #include "content/public/browser/web_contents_observer.h"
 #include "extensions/browser/api/system_display/display_info_provider.h"
 #include "extensions/common/api/system_display.h"
-#include "extensions/common/permissions/permissions_data.h"
 
 #if defined(OS_CHROMEOS)
 #include "extensions/common/manifest_handlers/kiosk_mode_info.h"
@@ -176,11 +175,6 @@
 }
 
 bool SystemDisplayFunction::ShouldRestrictToKioskAndWebUI() {
-  // Allow autotest extension to access for Chrome OS testing.
-  if (extension()->permissions_data()->HasAPIPermission(
-      APIPermission::kAutoTestPrivate)) {
-    return false;
-  }
   return true;
 }