staging: r8188eu: remove DBG_88E calls from hal subdir

Remove all remaining DBG_88E calls from the hal subdirectory. After some
thought, it makes more sense to just entirely strip all of these calls,
so that debugging code in the driver can be more consistent and useful
going forwards.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20220216010709.791-6-phil@philpotter.co.uk


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>