ams: revamp assertion system

libraries/libvapours/include/vapours/defines.hpp

@@ -18,10 +18,6 @@
 
 /* Any broadly useful language defines should go here. */
 
-#define AMS_ASSERT(expr) do { if (!(expr)) { std::abort(); } } while (0)
-
-#define AMS_UNREACHABLE_DEFAULT_CASE() default: std::abort()
-
 #define NON_COPYABLE(cls) \
     cls(const cls&) = delete; \
     cls& operator=(const cls&) = delete