Buildsystem: Removed debugging message from cmake output

cmake/macros/ConfigureBoost.cmake

@@ -13,7 +13,6 @@ if(WIN32)
   if(DEFINED ENV{BOOST_ROOT})
     set(BOOST_ROOT $ENV{BOOST_ROOT})
     set(BOOST_LIBRARYDIR ${BOOST_ROOT}/lib${PLATFORM}-msvc-12.0)
-    message(${BOOST_ROOT})
   else()
     message(FATAL_ERROR "No BOOST_ROOT environment variable could be found! Please make sure it is set and the points to your Boost installation.")
   endif()