Remove Windows XP SHA-256 and ECDSA logic.

net/socket/ssl_client_socket_openssl.cc

Index: net/socket/ssl_client_socket_openssl.cc
diff --git a/net/socket/ssl_client_socket_openssl.cc b/net/socket/ssl_client_socket_openssl.cc
index 393e718672fb2a2cacf630b9a4c67c116f19e024..6d7be716af7082a72a9208759507fcd01786e3f9 100644
--- a/net/socket/ssl_client_socket_openssl.cc
+++ b/net/socket/ssl_client_socket_openssl.cc
@@ -50,10 +50,6 @@
 #include "net/ssl/ssl_info.h"
 #include "net/ssl/ssl_private_key.h"
 
-#if defined(OS_WIN)
-#include "base/win/windows_version.h"
-#endif
-
 #if !defined(OS_NACL)
 #include "net/ssl/ssl_key_logger.h"
 #endif
@@ -1000,14 +996,6 @@ int SSLClientSocketOpenSSL::Init() {
     }
   }
 
-  // Disable ECDSA cipher suites on platforms that do not support ECDSA
-  // signed certificates, as servers may use the presence of such
-  // ciphersuites as a hint to send an ECDSA certificate.
-#if defined(OS_WIN)
-  if (base::win::GetVersion() < base::win::VERSION_VISTA)
-    command.append(":!ECDSA");
-#endif
-
   int rv = SSL_set_cipher_list(ssl_, command.c_str());
   // If this fails (rv = 0) it means there are no ciphers enabled on this SSL.
   // This will almost certainly result in the socket failing to complete the