staging: rts5208: remove unnecessary ftrace-like logging

Removed unnecessary ftrace-like logging by simply deleting that statement
as we have other modes of logging like ftrace.
Reported by checkpatch.

Signed-off-by: Mitali Borkar <mitaliborkar810@gmail.com>
Link: https://lore.kernel.org/r/YHMy457UGosfeaC0@kali


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