ASoC: wm0010: Remove spurious missing IRQF_ONESHOT

This reverts 58d46832

 ("ASoC: wm0010: Add missing IRQF_ONESHOT").

The coccinelle warnings is false positive because the original code does
set IRQF_ONESHOT by "trigger |= IRQF_ONESHOT;".

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>