Enable the ManagedBookmarks policy on all platforms.

components/policy_strings.grdp

Index: components/policy_strings.grdp
diff --git a/components/policy_strings.grdp b/components/policy_strings.grdp
index 502b5b745b912ffb27f0a25942f81896bba2eb79..de2e5eb6e9dce015eb2d4fa1a9f9dea545a6a915 100644
--- a/components/policy_strings.grdp
+++ b/components/policy_strings.grdp
@@ -298,16 +298,7 @@
   <message name="IDS_POLICY_LEVEL_MANDATORY" desc="Text displayed in the Level column when a policy is mandatory.">
     Mandatory
   </message>
-
-  <if expr="is_android or is_ios">
-    <message name="IDS_POLICY_MANAGED_BOOKMARKS" desc="Mobile: name of the managed bookmarks folder">
-      <ph name="DOMAIN">$1<ex>google.com</ex></ph> bookmarks
-    </message>
-    <message name="IDS_POLICY_MANAGED_BOOKMARKS_DEFAULT_NAME" desc="Mobile: name of the managed bookmarks folder when the management domain can't be determined.">
-      Managed bookmarks
-    </message>
-    <message name="IDS_POLICY_INVALID_BOOKMARK" desc="Text displayed in the status column when an entry of the ManagedBookmarks policy is not a valid bookmark.">
-      Ignored invalid bookmark at index <ph name="ENTRY_INDEX">$1<ex>3</ex></ph>
-    </message>
-  </if>
+  <message name="IDS_POLICY_INVALID_BOOKMARK" desc="Text displayed in the status column when an entry of the ManagedBookmarks policy is not a valid bookmark.">
+    Ignored invalid bookmark at index <ph name="ENTRY_INDEX">$1<ex>3</ex></ph>
+  </message>
 </grit-part>