Remove unnecessary plumbing for policy verification key

chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc

Index: chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc
diff --git a/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc b/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc
index b99fae200270fb75113049889c283b9e21f98014..0893816d19a97bc2bd6c4e424c8d40c8f729fc6c 100644
--- a/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc
+++ b/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc
@@ -150,12 +150,10 @@ void UserCloudPolicyStoreChromeOS::ValidatePolicyForStore(
       std::move(policy), CloudPolicyValidatorBase::TIMESTAMP_FULLY_VALIDATED);
   validator->ValidateUsername(account_id_.GetUserEmail(), true);
   if (cached_policy_key_.empty()) {
-    validator->ValidateInitialKey(GetPolicyVerificationKey(),
-                                  ExtractDomain(account_id_.GetUserEmail()));
+    validator->ValidateInitialKey(ExtractDomain(account_id_.GetUserEmail()));
   } else {
     validator->ValidateSignatureAllowingRotation(
-        cached_policy_key_, GetPolicyVerificationKey(),
-        ExtractDomain(account_id_.GetUserEmail()));
+        cached_policy_key_, ExtractDomain(account_id_.GetUserEmail()));
   }
 
   // Start validation. The Validator will delete itself once validation is