[#60] Next try to fix the logger

Signed-off-by: Tobias Frisch <tfrisch@uni-koblenz.de>

include/vkcv/Logger.hpp

 #pragma once
 
-#include <iostream>
+#include <stdio.h>
 
 namespace vkcv {
 	
@@ -37,10 +37,6 @@ namespace vkcv {
 #define VKCV_DEBUG_MESSAGE_LEN 1024
 #endif
 
-#ifdef MINGW_HAS_SECURE_API
-#undef MINGW_HAS_SECURE_API
-#endif
-
 #ifdef _MSC_VER
 #define __PRETTY_FUNCTION__ __FUNCSIG__
 #endif