Update tools/benchcomp/benchcomp/visualizers/__init__.py

Co-authored-by: Kareem Khazem <karkhaz@karkhaz.com>

tools/benchcomp/benchcomp/visualizers/__init__.py

@@ -290,9 +290,9 @@ def _compute_scaled_metric(data_for_metric, log_scaling):
  return None
  if not isinstance(variant_result, (int, float)):
  return None
- if min_value is None or variant_result < min_value:
+ if variant_result < min_value:
  min_value = variant_result
- if max_value is None or variant_result > max_value:
+ if variant_result > max_value:
  max_value = variant_result
  ret = {
  "benchmarks": {bench: {} for bench in data_for_metric.keys()},