Revert of Use std::tie() for operator< in components/

components/policy/core/common/policy_namespace.cc

Index: components/policy/core/common/policy_namespace.cc
diff --git a/components/policy/core/common/policy_namespace.cc b/components/policy/core/common/policy_namespace.cc
index 33a999283544d96de1895ff6734b23e49994d3b0..0fac9ca1e458aa076434f0e93e3795d2bd37b1ac 100644
--- a/components/policy/core/common/policy_namespace.cc
+++ b/components/policy/core/common/policy_namespace.cc
@@ -3,8 +3,6 @@
 // found in the LICENSE file.
 
 #include "components/policy/core/common/policy_namespace.h"
-
-#include <tuple>
 
 namespace policy {
 
@@ -28,8 +26,8 @@
 }
 
 bool PolicyNamespace::operator<(const PolicyNamespace& other) const {
-  return std::tie(domain, component_id) <
-         std::tie(other.domain, other.component_id);
+  return domain < other.domain ||
+         (domain == other.domain && component_id < other.component_id);
 }
 
 bool PolicyNamespace::operator==(const PolicyNamespace& other) const {