staging: rtl8723bs: os_dep: Remove unused declarations

Remove unused Macro declarations

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Link: https://lore.kernel.org/r/1566406901-6700-1-git-send-email-hariprasad.kelam@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>