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, 36 deletions

diff --git a/third_party/immer/test/box/vector-of-boxes-transient.cpp b/third_party/immer/test/box/vector-of-boxes-transient.cpp
deleted file mode 100644
index 623c8ba37d32..000000000000
--- a/third_party/immer/test/box/vector-of-boxes-transient.cpp
+++ /dev/null
@@ -1,36 +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 <immer/box.hpp>
-#include <immer/vector.hpp>
-#include <immer/vector_transient.hpp>
-
-#include <catch.hpp>
-
-TEST_CASE("issue-33")
-{
-    using Element = immer::box<std::string>;
-    auto vect     = immer::vector<Element>{};
-
-    // this one works fine
-    for (auto i = 0; i < 100; ++i) {
-        vect = vect.push_back(Element("x"));
-    }
-
-    // this one doesn't compile
-    auto t = vect.transient();
-
-    for (auto i = 0; i < 100; ++i) {
-        t.push_back(Element("x"));
-    }
-
-    vect = t.persistent();
-
-    CHECK(*vect[0] == "x");
-    CHECK(*vect[99] == "x");
-}