staging: rtl8723bs: remove unnecessary logging in hal/HalBtcOutSrc.h

fix the following checkpatch.pl issues:

WARNING: Unnecessary ftrace-like logging - prefer using ftrace
126: FILE: drivers/staging/rtl8723bs/hal/HalBtcOutSrc.h:126:
+		DbgPrint("%s(): ", __func__);\

and remove the whole unused containing macro BTC_PRINT_F

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/20210318152610.16758-7-fabioaiuto83@gmail.com


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