__cplusplus >= 201703L is always true now for _MSC_VER

...since 50cb9634 "Use correct __cplusplus value
with MSVC"

Change-Id: Ic107a8eff42b6e3961a787d1310cf4df78c26d49
Reviewed-on: https://gerrit.libreoffice.org/66064
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

unotools/source/i18n/resmgr.cxx

@@ -23,7 +23,7 @@
 #include <config_libcxx.h>
 #if HAVE_LIBCXX
 #define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
-#elif defined _MSC_VER && __cplusplus >= 201703L
+#elif defined _MSC_VER
 #define _HAS_AUTO_PTR_ETC 1
 #endif