Remove "Missing Worker Pool Configuration: ..." DLOG.

components/task_scheduler_util/common/variations_util.cc

Index: components/task_scheduler_util/common/variations_util.cc
diff --git a/components/task_scheduler_util/common/variations_util.cc b/components/task_scheduler_util/common/variations_util.cc
index 385b83bc94045d4459308e982daaf0a86323c7e9..f703e11da7d3b8aacd7b5c68b8cefd7fc7fc6161 100644
--- a/components/task_scheduler_util/common/variations_util.cc
+++ b/components/task_scheduler_util/common/variations_util.cc
@@ -99,7 +99,8 @@ std::vector<base::SchedulerWorkerPoolParams> GetWorkerPoolParams(
     const char* const worker_pool_name = constant_worker_pool_params.name();
     auto it = variation_params.find(worker_pool_name);
     if (it == variation_params.end()) {
-      DLOG(ERROR) << "Missing Worker Pool Configuration: " << worker_pool_name;
+      // Non-branded builds don't have access to external worker pool
+      // configurations.
       return std::vector<base::SchedulerWorkerPoolParams>();
     }
     const auto variable_worker_pool_params =