[PATCH][MIPS] Fix build with GCC 4.6

[Richard Sandiford]

Aurelien Jarno <aurelien@aurel32.net> writes:
> 2011-07-04  Aurelien Jarno  <aurelien@aurel32.net>
>
>         * config/tc-mips.c (append_insn): delete prev_pinfo2 and pinfo2.

Thanks, applied.

Richard