Remove deprecation test for prototype feature

Author: samanklesaria

test/torchaudio_unittest/deprecation_test.py

@@ -3,11 +3,6 @@
 import torch
 
 from torchaudio._internal.module_utils import UNSUPPORTED
-from torchaudio.prototype.functional import exp_sigmoid
-
-# Importing prototype modules is needed to trigger the registration of the
-# corresponding APIs in the UNSUPPORTED register.
-from torchaudio.prototype import datasets, functional, models, pipelines, transforms
 
 
 @pytest.mark.parametrize("func", UNSUPPORTED)
@@ -17,16 +12,3 @@ def test_deprecations(func):
             func()
         except Exception as e:
             assert isinstance(e, (TypeError, RuntimeError, ValueError, ImportError))
-
-
-# It's not great, but the deprecation decorator we're using breaks torchscript
-# This test just illustrates this behavior. Ideally, we wouldn't break
-# torchscript users. But oh well, torchscript is supposed to have been
-# deprecated for years.
-@pytest.mark.parametrize("scripted", (True, False))
-def test_torchscript_fails(scripted):
-    f = exp_sigmoid
-    if scripted:
-        pytest.xfail("Deprecation decorator breaks torchscript")
-        f = torch.jit.script(f)
-    f(torch.rand(2, 1000))