[Cleanup] Remove a bit of dead code.

R=asvitkine@chromium.org

Bug: none
Change-Id: If153053d1c7cfae0e51c669a53988f6541aa5ccb
Reviewed-on: https://chromium-review.googlesource.com/813183
Commit-Queue: Alexei Svitkine <asvitkine@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#522420}

components/variations/service/variations_service.cc

@@ -746,11 +746,6 @@ bool VariationsService::SetupFieldTrials(
       std::move(feature_list), variation_ids, platform_field_trials);
 }
 
-bool VariationsService::CreateTrialsFromSeed(base::FeatureList* feature_list) {
-  return field_trial_creator_.CreateTrialsFromSeed(CreateLowEntropyProvider(),
-                                                   feature_list);
-}
-
 std::string VariationsService::GetStoredPermanentCountry() {
   const base::ListValue* list_value =
       local_state_->GetList(prefs::kVariationsPermanentConsistencyCountry);

components/variations/service/variations_service.h

@@ -76,13 +76,6 @@ class VariationsService
 
   ~VariationsService() override;
 
-  // Creates field trials based on the variations seed loaded from local state.
-  // If there is a problem loading the seed data, all trials specified by the
-  // seed may not be created. Some field trials are configured to override or
-  // associate with (for reporting) specific features. These associations are
-  // registered with |feature_list|.
-  bool CreateTrialsFromSeed(base::FeatureList* feature_list);
-
   // Should be called before startup of the main message loop.
   void PerformPreMainMessageLoopStartup();