[klibc] mips64: remove __unused from __jmp_buf

This field is not needed. Probably it was copied straight from the
32-bit mips __jmp_buf.

Signed-off-by: James Cowgill <james.cowgill@mips.com>
Link: https://www.zytor.com/pipermail/klibc/2018-March/003984.html
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
1 file changed