refactor: Remove defunct attributes.h includes

Since the removal of NODISCARD in 81d5af42f4,
the only attributes def is LIFETIMEBOUND, and it's included in many more
places that it is used.

This removes all includes which do not have an associated use of LIFETIMEBOUND,
and adds it to the following files, due to their use of the same:
* src/validationinterface.h
* src/script/standard.h

src/core_io.h

@@ -6,7 +6,6 @@
 #define BITCOIN_CORE_IO_H
 
 #include <consensus/amount.h>
-#include <attributes.h>
 
 #include <string>
 #include <vector>