staging: rtl8192u: remove unused macros r819xU_cmdpkt.c

This patch removes CMPK_DEBOUNCE_CNT and CMPK_PRINT()
because they are not used anywhere in the driver.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>