removed rollaxis

llvm/projects/keras/src/mobilenet_cifar10.py

@@ -24,9 +24,6 @@ std = np.std(X_train, axis=(0, 1, 2), keepdims=True)
 X_train = (X_train - mean) / (std + 1e-9)
 X_test = (X_test - mean) / (std + 1e-9)
 
-np.rollaxis(X_train, 3, 1)
-np.rollaxis(X_test, 3, 1)
-
 y_train = to_categorical(y_train, num_classes=10)
 y_test = to_categorical(y_test, num_classes=10)