arch: powerpc: platforms: embedded6xx: mpc7448_hpc2.c: Remove some unused functions

[Michael Ellerman]

On Sat, 2014-20-12 at 22:42:32 UTC, Rickard Strandqvist wrote:
> Removes some functions that are not used anywhere:
> mpc7448_hpc2_halt() mpc7448_hpc2_power_off()

The other option would be to wire it up.

But the default implementations do more or less the same thing.

As far as I can see these were introduced in c5d56332fd6c "[POWERPC] Add
general support for mpc7448hpc2 (Taiga) platform" and never used.

cheers