staging: rtl8723bs: wifi_regd.c: fix comment formatting

This patch improves the formatting of block comments and removes one
commented-out line of code entirely (keeping it would be redundant
thanks to version control).

Signed-off-by: Fabian Wolff <fabian.wolff@fau.de>
Signed-off-by: Mate Horvath <horvatmate@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>