Remove deprecated factory functions from Type.

[ezyang]

Stack:
    :black_circle:  #11583 Remove deprecated factory functions from Type.  💚

Differential Revision: D9792800

[cpuhrsch]

Blocked on #11489 ?

[gchanan]

There might also be codegen we can remove...

[gchanan]

what about here:

pytorch/aten/src/ATen/function_wrapper.py

Lines 1083 to 1092 in 739e6af

	if not is_factory_method:
	if option['deprecated']:
	# Deprecated functions are always non-extended,
	# because they need to be made available from Type
	# (the public interface) so that code like
	# tensor.type().arange(...) keeps working. Once
	# we remove the deprecated functions, we can eliminate
	# these methods entirely.
	top_env['pure_virtual_type_method_declarations'].append(
	DEPRECATED_PURE_VIRTUAL_TYPE_METHOD_DECLARATION.substitute(env))

? Can that go?

[ssnl]

@ezyang this seems mergeable