Revert "HID: core: Do not call request_module() in async context"

This reverts commit 4ceabaf7.

This patch and a025a18f are giving extended timeouts
on boot for at least Ubuntu and openSUSE.

Revert them until we get a better fix.

Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>