Revert of Support different Google attestation (Privacy CA) servers.

chrome/browser/chromeos/attestation/attestation_ca_client.h

Index: chrome/browser/chromeos/attestation/attestation_ca_client.h
diff --git a/chrome/browser/chromeos/attestation/attestation_ca_client.h b/chrome/browser/chromeos/attestation/attestation_ca_client.h
index bd20390db487628a30e0726f023c243f6c8fb418..c362ebc7af9e16972bc555bdff0caad9d34318cb 100644
--- a/chrome/browser/chromeos/attestation/attestation_ca_client.h
+++ b/chrome/browser/chromeos/attestation/attestation_ca_client.h
@@ -9,7 +9,6 @@
 #include <string>
 
 #include "base/macros.h"
-#include "chromeos/attestation/attestation_constants.h"
 #include "chromeos/attestation/attestation_flow.h"
 #include "net/url_request/url_fetcher_delegate.h"
 
@@ -33,11 +32,7 @@
   // net::URLFetcherDelegate:
   void OnURLFetchComplete(const net::URLFetcher* source) override;
 
-  PrivacyCAType GetType() override;
-
  private:
-  PrivacyCAType pca_type_;
-
   typedef std::map<const net::URLFetcher*, DataCallback> FetcherCallbackMap;
 
   // POSTs |request| data to |url| and calls |on_response| with the response