Revert of Pretty print AlternativeService in test macros.

net/http/http_server_properties.cc

Index: net/http/http_server_properties.cc
diff --git a/net/http/http_server_properties.cc b/net/http/http_server_properties.cc
index e614b3864f28d594246f6475099ccb8a856abdac..82ce06e7e57a8a74ac93c63d2fc44fe0de2d93a7 100644
--- a/net/http/http_server_properties.cc
+++ b/net/http/http_server_properties.cc
@@ -3,8 +3,6 @@
 // found in the LICENSE file.
 
 #include "net/http/http_server_properties.h"
-
-#include <iostream>
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
@@ -112,11 +110,6 @@
                             probability);
 }
 
-std::ostream& operator<<(std::ostream& os,
-                         const AlternativeService& alternative_service) {
-  return (os << alternative_service.ToString());
-}
-
 // static
 void HttpServerProperties::ForceHTTP11(SSLConfig* ssl_config) {
   ssl_config->next_protos.clear();