Remove deprecated unsafe_raw_array method from PRNG keys

PiperOrigin-RevId: 595190146

CHANGELOG.md

@@ -17,7 +17,7 @@ Remember to align the itemized text with the first line of an item within a list
     devices to create `Sharding`s during lowering.
     This is a temporary state until we can create `Sharding`s without physical
     devices.
-* Deprecations
+* Deprecations & Removals
   * A number of previously deprecated functions have been removed, following a
     standard 3+ month deprecation cycle (see {ref}`api-compatibility`).
     This includes:
@@ -34,6 +34,8 @@ Remember to align the itemized text with the first line of an item within a list
     * from {mod}`jax.numpy`: `NINF`, `NZERO`, `PZERO`, `row_stack`, `issubsctype`,
       `trapz`, and `in1d`.
     * from {mod}`jax.scipy.linalg`: `tril` and `triu`.
+  * The previously-deprecated method `PRNGKeyArray.unsafe_raw_array` has been
+    removed. Use {func}`jax.random.key_data` instead.
 
 ## jaxlib 0.4.24
 

jax/_src/prng.py

@@ -19,7 +19,6 @@
 import math
 import operator as op
 from typing import Any, Callable, NamedTuple
-import warnings
 
 import numpy as np
 
@@ -308,13 +307,6 @@ def itemsize(self):
   on_device_size_in_bytes = property(op.attrgetter('_base_array.on_device_size_in_bytes'))  # type: ignore[assignment]
   unsafe_buffer_pointer = property(op.attrgetter('_base_array.unsafe_buffer_pointer'))  # type: ignore[assignment]
 
-  def unsafe_raw_array(self):
-    # deprecated on 13 Sept 2023
-    raise warnings.warn(
-        'The `unsafe_raw_array` method of PRNG key arrays is deprecated. '
-        'Use `jax.random.key_data` instead.', DeprecationWarning, stacklevel=2)
-    return self._base_array
-
   def addressable_data(self, index: int) -> PRNGKeyArrayImpl:
     return PRNGKeyArrayImpl(self._impl, self._base_array.addressable_data(index))