[config] Remove CISO646. (#10281)

Author: renanthera

engine/config.hpp

@@ -81,19 +81,6 @@
 #endif
 
 
-// ==========================================================================
-// Compiler Workarounds
-// ==========================================================================
-
-/* This header defines eleven macro constants with alternative spellings for those C++ operators
- * not supported by the ISO646 standard character set.
- * eg. and == &&, or == ||, etc.
- * This is required for MSVC, which without the /ZA option does not conform to the standard, but which
- * we don't want to use for other reasons.
- */
-#include <ciso646>
-
-
 // ==========================================================================
 // General Macros/Defines
 // ==========================================================================