platform/x86: panasonic-laptop: revert "Resolve hotkey double trigger bug"

platform/x86: panasonic-laptop: revert "Resolve hotkey double trigger bug"

In hindsight blindly throwing away most of the key-press events is not
a good idea. So revert commit e04fe9ff02b6 ("platform/x86:
panasonic-laptop: Resolve hotkey double trigger bug").

Fixes: e04fe9ff02b6 ("platform/x86: panasonic-laptop: Resolve hotkey double trigger bug")
Reported-and-tested-by: Stefan Seyfried <seife+kernel@b1-systems.com>
Reported-and-tested-by: Kenneth Chan <kenneth.t.chan@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220624112340.10130-5-hdegoede@redhat.com