staging: rtl8192e: rtl8192e: rtl_cam.c: Remove unused function

Remove the function CAM_read_entry() that is not used anywhere.

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

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