Remove params in python perform method

[ricardoV94]

Description

params are used to write C code that is shared among different parametrizations of the same Op class, such as an Op with self.inplace = True vs False: https://pytensor.readthedocs.io/en/latest/extending/using_params.html

They are also supposed to be passed to the python perform method (for those Ops that implement it), which we forgot to do when we implemented Blockwise. This seems unnecessary, and in fact many Ops just ignore params, and use node properties directly:

pytensor/pytensor/tensor/basic.py

Lines 3998 to 4002 in 9cf2d18

	def perform(self, node, inputs, out_, params):
	(out,) = out_
	sh = tuple([int(i) for i in inputs])
	if out[0] is None or out[0].shape != sh:
	out[0] = np.empty(sh, dtype=self.dtype)

I could only find 3 cases where it was being used, including:

pytensor/pytensor/tensor/blas.py

Lines 920 to 921 in 9cf2d18

	if not params.inplace:
	z = z.copy() # the original z will not be changed

The complication of the signature doesn't seem justified, for something that is clearly focused on the C backend. There is even a warning in the docs linked above: