[Project64] Disable memory test in release

Source/Common/MemTest.cpp

@@ -1,8 +1,11 @@
 #include "stdafx.h"
-#include <Windows.h>
+#include "MemTest.h"
+
+#if defined(MEM_LEAK_TEST) && defined(_WIN32)
+
 #undef new
 
-#ifdef _WIN32
+#include <Windows.h>
 #include <shellapi.h>
 
 static bool InInit = false;
@@ -219,4 +222,4 @@ void operator delete[](void* ptr, const char* /*filename*/, unsigned int /*line*
     delete ptr;
 }
 
-#endif
+#endif