[libc++] Enable format_to and vformat_to tests even outside of Debug mode

[ldionne]

Summary

These tests don't seem specific to the debug mode, so it makes sense to
run them even when the debug mode is disabled. When we run with the debug
mode enabled, we'll get the out-of-bounds checking that this test seems
to be concerned with.

[• Quuxplusone]

it makes sense to run them even when the debug mode is disabled

FWIW, that makes sense to me!

[Mordante]

In D121241#3368025, @Quuxplusone wrote:

it makes sense to run them even when the debug mode is disabled

FWIW, that makes sense to me!

I dug back in the development history, but I don't recall why I added this. It indeed doesn't seem to be required.
LGTM!

libcxx/test/std/utilities/format/format.functions/format_to.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: libcpp-has-no-incomplete-format
 // TODO FMT Evaluate gcc-11 status
 // UNSUPPORTED: gcc-11
 
-// The tests write fixed size buffer, make sure it remains in bounds.
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1
-// UNSUPPORTED: libcxx-no-debug-mode
-
 // <format>
 
 // template<class Out, class... Args>
 //   Out format_to(Out out, string_view fmt, const Args&... args);
 // template<class Out, class... Args>
 //   Out format_to(Out out, wstring_view fmt, const Args&... args);
 
 #include <format>

libcxx/test/std/utilities/format/format.functions/vformat_to.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: libcpp-has-no-incomplete-format
 // TODO FMT Evaluate gcc-11 status
 // UNSUPPORTED: gcc-11
 
-// The tests write fixed size buffer, make sure it remains in bounds.
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1
-// UNSUPPORTED: libcxx-no-debug-mode
-
 // <format>
 
 // template<class Out>
 //   Out vformat_to(Out out, string_view fmt, format_args args);
 // template<class Out>
 //    Out vformat_to(Out out, wstring_view fmt, wformat_args_t args);
 
 #include <format>