wifi: iwlwifi: remove Mr/Ms radio

This radio never shipped, so we don't need to have it in the code.
Remove the configurations and a few lines of code for it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241231135726.9f984db3efa0.I5a39ec951430e765bdea49ff150dd41af5e911f3@changeid


Signed-off-by: Johannes Berg <johannes.berg@intel.com>