sparc32: drop tadpole specific code

tadpole.c assigned cpu_pwr_save based on the current configuration.
The rest of the tadpole.c file was only used if cpu_pwr_save was
dereferenced.
But this variable was never dereferenced - and I went back to a 2.6.12
kernel to check (from June 2005) - and not even then was it used.

Drop this code as it has not been in use for ~10 years.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc arch/sparc/kernel/Makefile
Simple merge

diff --cc arch/sparc/kernel/devices.c
Simple merge

diff --cc arch/sparc/kernel/kernel.h
Simple merge

diff --cc arch/sparc/kernel/tadpole.c
Simple merge