rtl8192du: Remove unused pkt_to_recv{frame,data,mem} calls

These functions all used the broken rxmem_to_recvframe() function,
which simply masked out the lower bits of the pointer based on invalid
assumptions.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8192du: Clean up include/rtw_recv.h

This cleanup includes removing ifdef conditional statements, all
checkpatch errors and warnings, and camelcase variables.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8192du: Cleanup some configuration parameters

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8192du: Remove more configuration parameters

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8192du: Remove more unused configuration variables

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8192du: Fix error that was introduced in commit 147fd2a

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>