chore(3p/immer): Remove vendored copy of immer r/2029

We ended up dropping the use of this library again.

Change-Id: I2c44cd22a6128d23f87a582402bf5fb84991d608
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2292
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>

1 files changed, 0 insertions, 78 deletions

diff --git a/third_party/immer/extra/fuzzer/set-gc.cpp b/third_party/immer/extra/fuzzer/set-gc.cpp
deleted file mode 100644
index 3b88c08f3c2d..000000000000
--- a/third_party/immer/extra/fuzzer/set-gc.cpp
+++ /dev/null
@@ -1,78 +0,0 @@
-//
-// immer: immutable data structures for C++
-// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
-//
-// This software is distributed under the Boost Software License, Version 1.0.
-// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
-//
-
-#include "fuzzer_input.hpp"
-
-#include <immer/heap/gc_heap.hpp>
-#include <immer/refcount/no_refcount_policy.hpp>
-#include <immer/set.hpp>
-
-#include <array>
-
-using gc_memory = immer::memory_policy<immer::heap_policy<immer::gc_heap>,
-                                       immer::no_refcount_policy,
-                                       immer::gc_transience_policy,
-                                       false>;
-
-extern "C" int LLVMFuzzerTestOneInput(const std::uint8_t* data,
-                                      std::size_t size)
-{
-    constexpr auto var_count = 4;
-
-    using set_t =
-        immer::set<int, std::hash<char>, std::equal_to<char>, gc_memory>;
-
-    auto vars = std::array<set_t, var_count>{};
-
-    auto is_valid_var = [&](auto idx) { return idx >= 0 && idx < var_count; };
-
-    return fuzzer_input{data, size}.run([&](auto& in) {
-        enum ops
-        {
-            op_insert,
-            op_erase,
-            op_insert_move,
-            op_erase_move,
-            op_iterate
-        };
-        auto src = read<char>(in, is_valid_var);
-        auto dst = read<char>(in, is_valid_var);
-        switch (read<char>(in)) {
-        case op_insert: {
-            auto value = read<size_t>(in);
-            vars[dst]  = vars[src].insert(value);
-            break;
-        }
-        case op_erase: {
-            auto value = read<size_t>(in);
-            vars[dst]  = vars[src].erase(value);
-            break;
-        }
-        case op_insert_move: {
-            auto value = read<size_t>(in);
-            vars[dst]  = std::move(vars[src]).insert(value);
-            break;
-        }
-        case op_erase_move: {
-            auto value = read<size_t>(in);
-            vars[dst]  = vars[src].erase(value);
-            break;
-        }
-        case op_iterate: {
-            auto srcv = vars[src];
-            for (const auto& v : srcv) {
-                vars[dst] = vars[dst].insert(v);
-            }
-            break;
-        }
-        default:
-            break;
-        };
-        return true;
-    });
-}