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diff --git a/third_party/abseil_cpp/absl/random/internal/randen.cc b/third_party/abseil_cpp/absl/random/internal/randen.cc
deleted file mode 100644
index 78a1e00c08..0000000000
--- a/third_party/abseil_cpp/absl/random/internal/randen.cc
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2017 The Abseil Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "absl/random/internal/randen.h"
-
-#include "absl/base/internal/raw_logging.h"
-#include "absl/random/internal/randen_detect.h"
-
-// RANDen = RANDom generator or beetroots in Swiss German.
-// 'Strong' (well-distributed, unpredictable, backtracking-resistant) random
-// generator, faster in some benchmarks than std::mt19937_64 and pcg64_c32.
-//
-// High-level summary:
-// 1) Reverie (see "A Robust and Sponge-Like PRNG with Improved Efficiency") is
-//    a sponge-like random generator that requires a cryptographic permutation.
-//    It improves upon "Provably Robust Sponge-Based PRNGs and KDFs" by
-//    achieving backtracking resistance with only one Permute() per buffer.
-//
-// 2) "Simpira v2: A Family of Efficient Permutations Using the AES Round
-//    Function" constructs up to 1024-bit permutations using an improved
-//    Generalized Feistel network with 2-round AES-128 functions. This Feistel
-//    block shuffle achieves diffusion faster and is less vulnerable to
-//    sliced-biclique attacks than the Type-2 cyclic shuffle.
-//
-// 3) "Improving the Generalized Feistel" and "New criterion for diffusion
-//    property" extends the same kind of improved Feistel block shuffle to 16
-//    branches, which enables a 2048-bit permutation.
-//
-// We combine these three ideas and also change Simpira's subround keys from
-// structured/low-entropy counters to digits of Pi.
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-namespace random_internal {
-namespace {
-
-struct RandenState {
-  const void* keys;
-  bool has_crypto;
-};
-
-RandenState GetRandenState() {
-  static const RandenState state = []() {
-    RandenState tmp;
-#if ABSL_RANDOM_INTERNAL_AES_DISPATCH
-    // HW AES Dispatch.
-    if (HasRandenHwAesImplementation() && CPUSupportsRandenHwAes()) {
-      tmp.has_crypto = true;
-      tmp.keys = RandenHwAes::GetKeys();
-    } else {
-      tmp.has_crypto = false;
-      tmp.keys = RandenSlow::GetKeys();
-    }
-#elif ABSL_HAVE_ACCELERATED_AES
-    // HW AES is enabled.
-    tmp.has_crypto = true;
-    tmp.keys = RandenHwAes::GetKeys();
-#else
-    // HW AES is disabled.
-    tmp.has_crypto = false;
-    tmp.keys = RandenSlow::GetKeys();
-#endif
-    return tmp;
-  }();
-  return state;
-}
-
-}  // namespace
-
-Randen::Randen() {
-  auto tmp = GetRandenState();
-  keys_ = tmp.keys;
-#if ABSL_RANDOM_INTERNAL_AES_DISPATCH
-  has_crypto_ = tmp.has_crypto;
-#endif
-}
-
-}  // namespace random_internal
-ABSL_NAMESPACE_END
-}  // namespace absl