staging: rtl8192e: Remove dead code: cmpk_handle_query_config_rx()

Remove cmpk_handle_query_config_rx function. It is called
once, does some calculation, but generates no output -
it has neither return value, nor modify its parameters.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>