Enable the ManagedBookmarks policy on all platforms.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 114fb0b66378be5a6f0f563fe3a34746bfa1e1d6..8d55da43dc21eafc239f3892f12d8ac9810a0374 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -476,11 +476,6 @@ const char kDisabledSchemes[] = "protocol.disabled_schemes";
 // recorded on Android so that retries aren't attempted on every startup.
 // Instead the cloud policy registration is retried at least 1 or 3 days later.
 const char kLastPolicyCheckTime[] = "policy.last_policy_check_time";
-
-// A list of bookmarks to include in a Managed Bookmarks root node. Each
-// list item is a dictionary containing a "name" and an "url" entry, detailing
-// the bookmark name and target URL respectively.
-const char kManagedBookmarks[] = "policy.managed_bookmarks";
 #endif
 
 // Prefix URL for the experimental Instant ZeroSuggest provider.