RISC-V: Remove the unimplemented ISA extensions

This made sense when we die()d on unknown ISA extensions, but now that
we're just warning it's actually a bit detrimental: users won't see that
their unimplemented ISA extensions are silently having the wrong
definitions set, which may cause hard to debug failures.

Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
1 file changed