Make w32_regex_traits.hpp header only.

test/Jamfile.v2

@@ -66,7 +66,6 @@ lib boost_regex_recursive :
    ../src/regex.cpp
    ../src/regex_debug.cpp
    ../src/regex_raw_buffer.cpp
-   ../src/regex_traits_defaults.cpp
    ../src/static_mutex.cpp
    ../src/wide_posix_api.cpp
    ../build//icu_options

test/captures/Jamfile.v2

@@ -13,7 +13,6 @@ EX_SOURCES =
    regex.cpp
    regex_debug.cpp
    regex_raw_buffer.cpp
-   regex_traits_defaults.cpp
    static_mutex.cpp
    wide_posix_api.cpp ;
        

test/noeh_test/Jamfile.v2

@@ -29,7 +29,6 @@ lib boost_regex_noeh :
    ../../src/regex.cpp
    ../../src/regex_debug.cpp
    ../../src/regex_raw_buffer.cpp
-   ../../src/regex_traits_defaults.cpp
    ../../src/static_mutex.cpp
    ../../src/wide_posix_api.cpp
    ../../build//icu_options

test/test_consolidated.cpp

@@ -15,6 +15,5 @@
 #include <libs/regex/src/regex.cpp>
 #include <libs/regex/src/regex_debug.cpp>
 #include <libs/regex/src/regex_raw_buffer.cpp>
-#include <libs/regex/src/regex_traits_defaults.cpp>
 #include <libs/regex/src/static_mutex.cpp>
 #include <libs/regex/src/wide_posix_api.cpp>