remove unnecessary blank line

test/cpp/microbenchmarks/bm_closure.cc

@@ -386,7 +386,6 @@ static void BM_ClosureReschedOnExecCtx(benchmark::State& state) {
   Rescheduler r(state, grpc_schedule_on_exec_ctx);
   r.ScheduleFirst();
   grpc_core::ExecCtx::Get()->Flush();
-
   track_counters.Finish(state);
 }
 BENCHMARK(BM_ClosureReschedOnExecCtx);