staging: rtl8192e: remove unused functions

removed some functions which were not being used anywhere.
build tested and also verified by git grep that there is no other
reference to these functions.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/rtl8192e/rtl819x_HTProc.c
Simple merge

diff --cc drivers/staging/rtl8192e/rtllib.h
Simple merge