staging: rtl8723bs: clean up braces

Add or remove braces or remove lines to fix coding style issues and
clear checkpatch.

WARNING: braces {} are not necessary for single statement blocks
WARNING: braces {} are not necessary for any arm of this statement
CHECK: Unbalanced braces around else statement
CHECK: braces {} should be used on all arms of this statement
CHECK: Blank lines aren't necessary before a close brace '}'
CHECK: Blank lines aren't necessary after an open brace '{'

Signed-off-by: Ross Schmidt <ross.schm.dev@gmail.com>
Link: https://lore.kernel.org/r/20201110041008.15847-2-ross.schm.dev@gmail.com


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