meson: remove unused USE_FOO_ASM defines
The usage of these defines was removed, so let's remove the definitions as well.
Fixes: ed4fd1d9 ("util: cleanup cpuinfo.* and it's related files")
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
The usage of these defines was removed, so let's remove the definitions as well.
Fixes: ed4fd1d9 ("util: cleanup cpuinfo.* and it's related files")