Revert "Suppress -Wctad-maybe-unsupported on types w/o deduction guides."

Some modules builds are issuing buggy diagnostics. The cause of which is
TBD.

This reverts commit r@367770.

llvm-svn: 367777

1 files changed, 0 insertions, 41 deletions

diff --git a/libcxx/test/std/iterators/predef.iterators/insert.iterators/back.insert.iterator/implicit_ctad.pass.cpp b/libcxx/test/std/iterators/predef.iterators/insert.iterators/back.insert.iterator/implicit_ctad.pass.cpp
deleted file mode 100644
index 7c4ba6a6c29..00000000000
--- a/libcxx/test/std/iterators/predef.iterators/insert.iterators/back.insert.iterator/implicit_ctad.pass.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-// <iterator>
-
-// UNSUPPORTED: c++98, c++03, c++11, c++14
-// UNSUPPORTED: libcpp-no-deduction-guides
-
-// class back_insert_iterator.
-
-#include <string>
-#include <iterator>
-#include <vector>
-#include <cassert>
-#include <cstddef>
-#include <functional>
-
-#include "test_macros.h"
-
-int main(int, char**)
-{
-    {
-      std::string s;
-      std::back_insert_iterator bs(s);
-      ASSERT_SAME_TYPE(decltype(bs), std::back_insert_iterator<std::string>);
-    }
-  {
-    std::vector<int> v;
-    std::back_insert_iterator bv(v);
-    std::back_insert_iterator cp(bv);
-    ASSERT_SAME_TYPE(decltype(bv), std::back_insert_iterator<std::vector<int>>);
-    ASSERT_SAME_TYPE(decltype(cp), std::back_insert_iterator<std::vector<int>>);
-  }
-
-  return 0;
-}