toshiba_acpi: fix section mismatch in allyesconfig

Fix section error (allyesconfig). The exit function is called from init,
so functions that are called by the exit function cannot be marked __exit.

WARNING: drivers/built-in.o(.text+0xe5bc6): Section mismatch: reference to .exit.
text: (between 'toshiba_acpi_exit' and 'hci_raw')

Signed-off-by: Randy Dunlap <[e-mail]>
Cc: Len Brown <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/acpi/toshiba_acpi.c

···
 	return AE_OK;
 }
 
-static acpi_status __exit remove_device(void)
+static acpi_status remove_device(void)
 {
 	ProcItem *item;