message: Remove prints from tests
diff: @@ -279,9 +279,6 @@ def test06_replace_grad(m):
  x2 = x*x
  y2 = y*y
  z = dr.replace_grad(x2, y2)
  - print(f"{x2=}")
  - print(f"{y2=}")
  - print(f"{z=}")
  assert z.x.index_ad == y2.x.index_ad
  assert z.y.index_ad == y2.y.index_ad
  assert z.z.index_ad == y2.z.index_ad
  @@ -1272,20 +1269,17 @@ def test58_custom_error(m):
  class Normalize(dr.CustomOp):
  def eval(self, value):
  - print('eval in')
  self.value = value
  self.inv_norm = dr.rcp(dr.norm(value))
  return value * self.inv_norm
  def forward(self):
  - print('forward!')
  grad_in = self.grad_in('value')
  grad_out = grad_in * self.inv_norm
  grad_out -= self.value * (dr.dot(self.value, grad_out) * dr.sqr(self.inv_norm))
  self.set_grad_out(grad_out)
  def backward(self):
  - print('backward!')
  grad_out = self.grad_out()
  grad_in = grad_out * self.inv_norm
  grad_in -= self.value * (dr.dot(self.value, grad_in) * dr.sqr(self.inv_norm))
  