Revert of Add source column to chrome://policy showing the origins of policies.

components/policy/core/common/policy_service_impl.cc

Index: components/policy/core/common/policy_service_impl.cc
diff --git a/components/policy/core/common/policy_service_impl.cc b/components/policy/core/common/policy_service_impl.cc
index 2820767c14358008e3c5615eb4f684ad16b8ab6f..96922ace797cebb1970bbf359acaa8f729bb74c1 100644
--- a/components/policy/core/common/policy_service_impl.cc
+++ b/components/policy/core/common/policy_service_impl.cc
@@ -14,7 +14,6 @@
 #include "base/values.h"
 #include "components/policy/core/common/policy_bundle.h"
 #include "components/policy/core/common/policy_map.h"
-#include "components/policy/core/common/policy_types.h"
 #include "policy/policy_constants.h"
 
 namespace policy {
@@ -42,7 +41,6 @@
   // The highest (level, scope) pair for an existing proxy policy is determined
   // first, and then only policies with those exact attributes are merged.
   PolicyMap::Entry current_priority;  // Defaults to the lowest priority.
-  PolicySource inherited_source = POLICY_SOURCE_ENTERPRISE_DEFAULT;
   scoped_ptr<base::DictionaryValue> proxy_settings(new base::DictionaryValue);
   for (size_t i = 0; i < arraysize(kProxyPolicies); ++i) {
     const PolicyMap::Entry* entry = policies->Get(kProxyPolicies[i]);
@@ -50,8 +48,6 @@
       if (entry->has_higher_priority_than(current_priority)) {
         proxy_settings->Clear();
         current_priority = *entry;
-        if (entry->source > inherited_source)  // Higher priority?
-          inherited_source = entry->source;
       }
       if (!entry->has_higher_priority_than(current_priority) &&
           !current_priority.has_higher_priority_than(*entry)) {
@@ -68,7 +64,6 @@
     policies->Set(key::kProxySettings,
                   current_priority.level,
                   current_priority.scope,
-                  inherited_source,
                   proxy_settings.release(),
                   NULL);
   }