Revert "RISC-V: Select GENERIC_LIB_UMODDI3 on RV32"

I'm removing the generic 64-bit divide support, which means this will no
longer work.

This reverts commit 757331db921428295948fed5e7377a436e66d34e.

Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
1 file changed