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, 39 deletions

diff --git a/third_party/immer/test/vector/issue-46.cpp b/third_party/immer/test/vector/issue-46.cpp
deleted file mode 100644
index 6475be210d05..000000000000
--- a/third_party/immer/test/vector/issue-46.cpp
+++ /dev/null
@@ -1,39 +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
-//
-
-// Thanks Guiguiprim for reporting this issue
-// https://github.com/arximboldi/immer/issues/46
-
-#include <immer/flex_vector.hpp>
-#include <immer/vector.hpp>
-#include <immer/vector_transient.hpp>
-
-#include <catch.hpp>
-
-TEST_CASE("operator==() may return bad result")
-{
-    using bool_vec = immer::flex_vector<bool>;
-
-    immer::vector<bool_vec> v0;
-    auto tv = v0.transient();
-    tv.push_back(bool_vec(9, false));
-    tv.push_back(bool_vec(10, false));
-    tv.push_back(bool_vec(8, false));
-    tv.push_back(bool_vec(6, false));
-    tv.push_back(bool_vec(9, false));
-    tv.push_back(bool_vec(7, false));
-    tv.push_back(bool_vec(8, false));
-    tv.push_back(bool_vec(9, false));
-    tv.push_back(bool_vec(10, false));
-    v0 = tv.persistent();
-
-    auto v1 = v0.update(1, [](bool_vec vec) { return vec.set(8, true); });
-
-    CHECK(v0[1] != v1[1]);
-    CHECK(v0 != v1);
-}