Revert "staging: rtl8723bs: Mark ACPI table declaration as used"

This reverts commit e6d09371.

Turns out it is not needed at all, a fix for clang was made and accepted
upstream in that project that makes this change unnecessary.  So revert
it.
Reported-by: NNick Desaulniers <ndesaulniers@google.com>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/os_dep/sdio_intf.c

@@ -22,7 +22,7 @@ static const struct sdio_device_id sdio_ids[] =
 	{ SDIO_DEVICE(0x024c, 0xb723), },
 	{ /* end: all zeroes */				},
 };
-static const struct acpi_device_id acpi_ids[] __used = {
+static const struct acpi_device_id acpi_ids[] = {
 	{"OBDA8723", 0x0000},
 	{}
 };