Fix bug in PR 423 (#446)

修复了画图时可能的bug

Author: 3619117923

graph_net/verify_aggregated_params.py

@@ -13,11 +13,7 @@ def determine_tolerances(
     positive_tolerance_interpretation: PositiveToleranceInterpretation,
 ) -> range:
     """Determine tolerance range based on observed errno categories."""
-    if samples:
-        max_errno = len(samples)
-    else:
-        max_errno = positive_tolerance_interpretation.num_errno_enum_values()
-
+    max_errno = positive_tolerance_interpretation.num_errno_enum_values()
     return range(-10, max_errno + 2)