parisc: Drop homebrewn io[read|write]64_[lo_hi|hi_lo]

parisc: Drop homebrewn io[read|write]64_[lo_hi|hi_lo]

The parisc implements ioread64_lo_hi(), ioread64_hi_lo()
iowrite64_lo_hi() and iowrite64_hi_lo() while we already
have a perfectly working generic version in the generic
portable assembly in <linux/io-64-nonatomic-hi-lo.h>.

Drop the custom versions in favor for the defaults.

Fixes: 77bfc8bdb5a1 ("parisc: Remove 64bit access on 32bit machines")
Cc: Arnd Bergmann <[email protected]>
Acked-by: Helge Deller <[email protected]>
Reported-by: Helge Deller <[email protected]>
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>