fix MSVC build

Maximilien Siavelis

2018-01-06 13d183dd22c2929db8230a20151020b636273e8d

 src/library/LicenseReader.cpp

@@ -25,8 +25,6 @@
#include "public-key.h"
#include <build_properties.h>

#include "os/os-cpp.h"

namespace license {

const char *FullLicenseInfo::UNUSED_TIME = "0000-00-00";