Rewrite printnum_{slong,ulong,ptr,kptr} using dispatch_{word,klong}size

Rewrite printnum_{slong,ulong,ptr,kptr} using dispatch_{word,klong}size

* defs.h (printnum_long_int, printnum_addr_long_int, printnum_addr_klong_int):
Remove declaration.
(printnum_slong, printnum_ulong): Implement unconditionally using
dispatch_wordsize and opt_wordsize for the last argument.
(printnum_ptr): Implement unconditionally using dispatch_wordsize.
(printnum_kptr): Implement unconditionally using dispatch_klongsize.
* util.c (printnum_long_int, printnum_addr_long_int, printnum_addr_klong_int):
Remove.