staging: rtl8723bs: hal: Remove unneeded variable pU1Tmp

Both pu8 and pU1Tmp are of same data type u8. So replace pU1Tmp with u8.

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Link: https://lore.kernel.org/r/20190725032325.GA16473@hari-Inspiron-1545


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