Remove remnants of DHE support.

net/socket/client_socket_pool_manager.cc

Index: net/socket/client_socket_pool_manager.cc
diff --git a/net/socket/client_socket_pool_manager.cc b/net/socket/client_socket_pool_manager.cc
index f0b4b6f96c8e7cc0ff55f76981d092ba0904329a..91f75889fb30f2c41e7c87453a514ec9a6254032 100644
--- a/net/socket/client_socket_pool_manager.cc
+++ b/net/socket/client_socket_pool_manager.cc
@@ -113,14 +113,8 @@ int InitSocketPoolHelper(ClientSocketPoolManager::SocketGroupType group_type,
     DCHECK(!using_ssl);
     connection_group = "ftp/" + connection_group;
   }
-  if (using_ssl) {
-    std::string prefix = "ssl/";
-    // Place sockets with and without deprecated ciphers into separate
-    // connection groups.
-    if (ssl_config_for_origin.deprecated_cipher_suites_enabled)
-      prefix += "deprecatedciphers/";
-    connection_group = prefix + connection_group;
-  }
+  if (using_ssl)
+    connection_group = "ssl/" + connection_group;
 
   ClientSocketPool::RespectLimits respect_limits =
       ClientSocketPool::RespectLimits::ENABLED;