Revert of ChromeOS: Enable Gaia v2 API by default.

chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
index 886ae3c45bda289798179b4fa2db00c63615b9dc..e530027a98342f303884801e19bd05f6f774b049 100644
--- a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
@@ -348,17 +348,9 @@
     params.SetString("gaiaUrl", eafe_url);
     params.SetString("gaiaPath", eafe_path);
   }
-
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kCrosGaiaApiV1)) {
     params.SetString("chromeOSApiVersion", "1");
-  } else if (use_easy_bootstrap_) {
-    // Easy bootstrap is not v2-compatible
-    params.SetString("chromeOSApiVersion", "1");
-  } else {
-    // This enables GLIF MM UI for the online Gaia screen by default.
-    // (see https://crbug.com/709244 ).
-    params.SetString("chromeOSApiVersion", "2");
   }
 
   frame_state_ = FRAME_STATE_LOADING;