Remove unused kwarg in Scan.__init__

Author: ricardoV94

pytensor/scan/op.py

@@ -677,7 +677,6 @@ def __init__(
         typeConstructor: Optional[TensorConstructorType] = None,
         truncate_gradient: int = -1,
         name: Optional[str] = None,
-        as_while: bool = False,
         profile: Optional[Union[str, bool]] = None,
         allow_gc: bool = True,
         strict: bool = True,
@@ -1186,7 +1185,7 @@ def make_node(self, *inputs):
         # these are states that do not feed anything back in the recurrent
         # computation, and hence they do not have an initial state. The scan
         # node however receives an input for each such argument, the input
-        # in this case is just a int saying how many steps of this output we
+        # in this case is just an int saying how many steps of this output we
         # need to store. This input does not have the same dtype, nor is it the same
         # type of tensor as the output, it is always a scalar int.
         new_inputs += [as_tensor_variable(ons) for ons in self.outer_nitsot(inputs)]