fix extra vars error

app.py

@@ -7,7 +7,7 @@ matplotlib.use("Agg")
 import matplotlib.pyplot as plt
 import seaborn as sns
 
-def train_estimators(max_depth,n_estimators):
+def train_estimators(n_estimators):
     rng = np.random.RandomState(1)
     X = np.linspace(0, 6, 100)[:, np.newaxis]
     y = np.sin(X).ravel() + np.sin(6 * X).ravel() + rng.normal(0, 0.1, X.shape[0])