Fixed nit

Author: antoniovs1029

test/Microsoft.ML.AutoML.Tests/AutoFitTests.cs

@@ -418,7 +418,7 @@ public void AutoFitMaxExperimentTimeTest()
 
 
  Assert.True(containsMessage,
- $"Iteration {iteration} - Did not obtain '{expectedExceptionMessage}' error." +
+ $"Did not obtain '{expectedExceptionMessage}' error." +
  $"Obtained unexpected error of type {lastException.GetType()} with message: {lastException.Message}");
 
  // Ensure that the best found model can still run after maximum experiment time was reached.