[POWERPC] Remove stale comment from head_64.S

This is now inaccurate because we may not have entered prom_init() and
r3 is overwritten immediately anyway.

Signed-off-by: Sonny Rao <sonny@burdell.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Sonny Rao 2007-03-22 22:44:31 -04:00 committed by Paul Mackerras
commit a5bcbcaff2