While applying N4258, I forgot about LWG#2455, which modified the modifications. Correct those - h/t: Howard

llvm-svn: 239004
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 979550f2210e5c5fb1c061f5b88cdcbd6fa40f36
diff --git a/include/vector b/include/vector
index ec413fa..3600147 100644
--- a/include/vector
+++ b/include/vector
@@ -500,12 +500,7 @@
                   "Allocator::value_type must be same type as value_type");
 
     _LIBCPP_INLINE_VISIBILITY
-    vector()
-#if _LIBCPP_STD_VER <= 14
-        _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
-#else
-        _NOEXCEPT
-#endif
+    vector() _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
         {
 #if _LIBCPP_DEBUG_LEVEL >= 2
             __get_db()->__insert_c(this);
@@ -2170,12 +2165,7 @@
 
 public:
     _LIBCPP_INLINE_VISIBILITY
-    vector()
-#if _LIBCPP_STD_VER <= 14
-        _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value);
-#else
-        _NOEXCEPT;
-#endif
+    vector() _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value);
 
     _LIBCPP_INLINE_VISIBILITY explicit vector(const allocator_type& __a)
 #if _LIBCPP_STD_VER <= 14
@@ -2569,11 +2559,7 @@
 template <class _Allocator>
 inline _LIBCPP_INLINE_VISIBILITY
 vector<bool, _Allocator>::vector()
-#if _LIBCPP_STD_VER <= 14
-        _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
-#else
-        _NOEXCEPT
-#endif
+    _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
     : __begin_(nullptr),
       __size_(0),
       __cap_alloc_(0)