soundwire: bus: Remove now outdated comments on no_pm IO
Things have moved more towards end drivers using the no_pm versions of
the IO functions. See commits:
commit
167790abb90f ("soundwire: export sdw_write/read_no_pm functions")
commit
62dc9f3f2fd0 ("soundwire: bus: export sdw_nwrite_no_pm and
sdw_nread_no_pm functions")
As such this comment is now misleading, so remove it.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230322164948.566962-1-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>