Remove duplicate method of BlindSignAuth::GetTokens now that the Chrome is setting service_type.

PiperOrigin-RevId: 627109373

quiche/blind_sign_auth/blind_sign_auth.cc

diff --git a/quiche/blind_sign_auth/blind_sign_auth.cc b/quiche/blind_sign_auth/blind_sign_auth.cc
index 43cbf27..898fcfd 100644
--- a/quiche/blind_sign_auth/blind_sign_auth.cc
+++ b/quiche/blind_sign_auth/blind_sign_auth.cc
@@ -46,13 +46,6 @@
 
 }  // namespace
 
-void BlindSignAuth::GetTokens(std::string oauth_token, int num_tokens,
-                              ProxyLayer proxy_layer,
-                              SignedTokenCallback callback) {
-  GetTokens(oauth_token, num_tokens, proxy_layer,
-            BlindSignAuthServiceType::kChromeIpBlinding, std::move(callback));
-}
-
 void BlindSignAuth::GetTokens(std::optional<std::string> oauth_token,
                               int num_tokens, ProxyLayer proxy_layer,
                               BlindSignAuthServiceType service_type,

quiche/blind_sign_auth/blind_sign_auth.h

diff --git a/quiche/blind_sign_auth/blind_sign_auth.h b/quiche/blind_sign_auth/blind_sign_auth.h
index cb555e0..ab223ad 100644
--- a/quiche/blind_sign_auth/blind_sign_auth.h
+++ b/quiche/blind_sign_auth/blind_sign_auth.h
@@ -39,12 +39,6 @@
                  ProxyLayer proxy_layer, BlindSignAuthServiceType service_type,
                  SignedTokenCallback callback) override;
 
-  // Returns signed unblinded tokens and their expiration time in a callback.
-  // This function sends BlindSignAuthServiceType::kChromeIpBlinding by default
-  // for compatibility.
-  void GetTokens(std::string oauth_token, int num_tokens,
-                 ProxyLayer proxy_layer, SignedTokenCallback callback);
-
  private:
   void GetInitialDataCallback(std::optional<std::string> oauth_token,
                               int num_tokens, ProxyLayer proxy_layer,