Revert "Implement LWG 2221 - No formatted output operator for nullptr."

This reverts r342566 as it causes on bots linker errors like

> Undefined symbols for architecture i386:
>   "std::__1::basic_ostream<char, std::__1::char_traits<char> >::operator<<(std::nullptr_t)", referenced from:

llvm-svn: 342599

1 files changed, 0 insertions, 80 deletions

diff --git a/libcxx/test/std/input.output/iostream.format/output.streams/ostream.formatted/ostream.inserters/nullptr.pass.cpp b/libcxx/test/std/input.output/iostream.format/output.streams/ostream.formatted/ostream.inserters/nullptr.pass.cpp
deleted file mode 100644
index 0893b2b07a8..00000000000
--- a/libcxx/test/std/input.output/iostream.format/output.streams/ostream.formatted/ostream.inserters/nullptr.pass.cpp
+++ /dev/null
@@ -1,80 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-// <ostream>
-
-// template <class charT, class traits = char_traits<charT> >
-//   class basic_ostream;
-
-// template<class charT, class traits>
-//   basic_ostream<charT,traits>& operator<<(basic_ostream<charT,traits>& out, nullptr_t);
-//
-
-#include <ostream>
-#include <cassert>
-#include "test_macros.h"
-
-template <class CharT>
-class testbuf
-    : public std::basic_streambuf<CharT>
-{
-    typedef std::basic_streambuf<CharT> base;
-    std::basic_string<CharT> str_;
-public:
-    testbuf()
-    {
-    }
-
-    std::basic_string<CharT> str() const
-        {return std::basic_string<CharT>(base::pbase(), base::pptr());}
-
-protected:
-
-    virtual typename base::int_type
-        overflow(typename base::int_type ch = base::traits_type::eof())
-        {
-            if (ch != base::traits_type::eof())
-            {
-                int n = static_cast<int>(str_.size());
-                str_.push_back(ch);
-                str_.resize(str_.capacity());
-                base::setp(const_cast<CharT*>(str_.data()),
-                           const_cast<CharT*>(str_.data() + str_.size()));
-                base::pbump(n+1);
-            }
-            return ch;
-        }
-};
-
-int main()
-{
-    {
-        std::wostream os((std::wstreambuf*)0);
-        os << nullptr;
-        assert(os.bad());
-        assert(os.fail());
-    }
-    {
-        testbuf<char> sb;
-        std::ostream os(&sb);
-        assert(sb.str().length() == 0);
-        os << nullptr;
-        assert(sb.str().length() > 0);
-        LIBCPP_ASSERT(sb.str() == "(nullptr)");  // output is an implementation-defined NTCTS
-    }
-
-    {
-        testbuf<wchar_t> sb;
-        std::wostream os(&sb);
-        assert(sb.str().length() == 0);
-        os << nullptr;
-        assert(sb.str().length() > 0);
-        LIBCPP_ASSERT(sb.str() == L"(nullptr)");  // output is an implementation-defined NTCTS
-    }
-}