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-rw-r--r--boost/spirit/home/x3/support/traits/string_traits.hpp4
1 files changed, 0 insertions, 4 deletions
diff --git a/boost/spirit/home/x3/support/traits/string_traits.hpp b/boost/spirit/home/x3/support/traits/string_traits.hpp
index 46ee356cdc..44c8d144a8 100644
--- a/boost/spirit/home/x3/support/traits/string_traits.hpp
+++ b/boost/spirit/home/x3/support/traits/string_traits.hpp
@@ -9,10 +9,6 @@
#if !defined(BOOST_SPIRIT_X3_STRING_TRAITS_OCTOBER_2008_1252PM)
#define BOOST_SPIRIT_X3_STRING_TRAITS_OCTOBER_2008_1252PM
-#if defined(_MSC_VER)
-#pragma once
-#endif
-
#include <string>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/identity.hpp>