Set deprecation for sooner (warning has been around for a year) (#2351)

Summary:
Pull Request resolved: #2351

Context for this stack: we've been meaning to deprecate ALEBO and REMBO for a long time. Tests on them break periodically and slow down development of GenerationStrategy, which these classes hack around, so there's substantial maintenance burden to keeping them.

Context for this diff, RfC: 0.5.0 is a long-ways away. Let's deprecate these in the version after next one we cut.

Reviewed By: saitcakmak

Differential Revision: D56038505

fbshipit-source-id: 77f40da515d6295fec28a2642bf0a078a4881b5e

ax/models/torch/alebo.py

@@ -264,7 +264,7 @@ def __init__(self, B: Tensor, batch_shape: torch.Size) -> None:
             has_lengthscale=False, ard_num_dims=None, eps=0.0, batch_shape=batch_shape
         )
         warn(
-            "ALEBOKernel is deprecated and should be removed in Ax 0.5.0.",
+            "ALEBOKernel is deprecated and should be removed in Ax 0.3.9.",
             DeprecationWarning,
         )
         # pyre-fixme[4]: Attribute must be annotated.
@@ -337,7 +337,7 @@ def __init__(
         self, B: Tensor, train_X: Tensor, train_Y: Tensor, train_Yvar: Tensor
     ) -> None:
         warn(
-            "ALEBOGP is deprecated and should be removed in Ax 0.5.0. SAASBO "
+            "ALEBOGP is deprecated and should be removed in Ax 0.3.9. SAASBO "
             "(Models.SAASBO from ax.modelbridge.registry) likely provides better "
             "performance.",
             DeprecationWarning,
@@ -433,7 +433,7 @@ def get_fitted_model(
     """
     warn(
         "`get_fitted_model` from ax.models.torch.alebo.py is deprecated and "
-        "should be removed in Ax 0.5.0.",
+        "should be removed in Ax 0.3.9.",
         DeprecationWarning,
     )
     # Get MAP estimate.
@@ -484,7 +484,7 @@ def get_map_model(
     """
     warn(
         "`get_map_model` from ax.models.torch.alebo.py is deprecated and should "
-        "be removed in Ax 0.5.0.",
+        "be removed in Ax 0.3.9.",
         DeprecationWarning,
     )
     f_best = 1e8
@@ -530,7 +530,7 @@ def laplace_sample_U(
         and output scale.
     """
     warn(
-        "laplace_sample_U is deprecated and should be removed in Ax 0.5.0.",
+        "laplace_sample_U is deprecated and should be removed in Ax 0.3.9.",
         DeprecationWarning,
     )
     # Estimate diagonal of the Hessian
@@ -600,7 +600,7 @@ def get_batch_model(
     """
     warn(
         "`get_batch_model` from ax.models.torch.alebo.py is deprecated and "
-        "should be removed in Ax 0.5.0.",
+        "should be removed in Ax 0.3.9.",
         DeprecationWarning,
     )
     b = Uvec_batch.size(0)
@@ -641,7 +641,7 @@ def extract_map_statedict(
     """
     warn(
         "`extract_map_statedict` from ax.models.torch.alebo.py is deprecated and "
-        "should be removed in Ax 0.5.0.",
+        "should be removed in Ax 0.3.9.",
         DeprecationWarning,
     )
     is_modellist = num_outputs > 1
@@ -741,7 +741,7 @@ def alebo_acqf_optimizer(
     lie within that polytope.
     """
     warn(
-        "`alebo_acqf_optimizer` is deprecated and should be removed in Ax 0.5.0.",
+        "`alebo_acqf_optimizer` is deprecated and should be removed in Ax 0.3.9.",
         DeprecationWarning,
     )
     candidate_list, acq_value_list = [], []
@@ -819,7 +819,7 @@ def __init__(
         self, B: Tensor, laplace_nsamp: int = 25, fit_restarts: int = 10
     ) -> None:
         warn(
-            "ALEBO is deprecated and should be removed in Ax 0.5.0.",
+            "ALEBO is deprecated and should be removed in Ax 0.3.9.",
             DeprecationWarning,
         )
         self.B = B

ax/models/torch/rembo.py

@@ -49,7 +49,7 @@ def __init__(
     ) -> None:
         warn(
             "REMBO is deprecated and does not guarantee correctness. "
-            "It will be removed in Ax 0.5.0.",
+            "It will be removed in Ax 0.3.9.",
             DeprecationWarning,
         )
         self.A = A