Remove support for ClientOAuth from GaiaAuthFetcher.

google_apis/gaia/gaia_urls.cc

Index: google_apis/gaia/gaia_urls.cc
diff --git a/google_apis/gaia/gaia_urls.cc b/google_apis/gaia/gaia_urls.cc
index 543bd889f03ae2ec20f64b169e5cc55650c82a97..f5734c714a99d241ca89e7a892d512165dca33de 100644
--- a/google_apis/gaia/gaia_urls.cc
+++ b/google_apis/gaia/gaia_urls.cc
@@ -111,7 +111,6 @@ GaiaUrls::GaiaUrls() {
   oauth_wrap_bridge_url_ = gaia_url_base + kOAuthWrapBridgeUrlSuffix;
   oauth_revoke_token_url_ = gaia_url_base + kOAuthRevokeTokenUrlSuffix;
   oauth1_login_url_ = gaia_url_base + kOAuth1LoginUrlSuffix;
-  client_oauth_url_ = gaia_url_base + kClientOAuthUrlSuffix;
 
   // URLs from accounts.google.com (LSO).
   get_oauth_token_url_ = lso_origin_url_ + kGetOAuthTokenUrlSuffix;
@@ -218,10 +217,6 @@ const std::string& GaiaUrls::oauth_wrap_bridge_user_info_scope() {
   return oauth_wrap_bridge_user_info_scope_;
 }
 
-const std::string& GaiaUrls::client_oauth_url() {
-  return client_oauth_url_;
-}
-
 const std::string& GaiaUrls::oauth2_chrome_client_id() {
   return oauth2_chrome_client_id_;
 }