message: [XLA/GPU] remove unnecessary check.
diff: @@ -1542,10 +1542,8 @@ void BufferAssigner::AssignBuffersFromHeapSimulator(
  }
  // Compute peak_buffers only when the multiheap mode is off. Simply return
  // an empty vector in the multiheap mode.
  - if (assignment->multiheap_size_constraint_per_heap() == -1) {
  allocation->peak_buffers_ =
  ComputePeakMemoryLogicalBuffers(*allocation, result.debug_trace);
  - }
  XLA_VLOG_LINES(2, allocation->ToString());
  