staging: rtl8192e: Remove unchanged variable AcmMethod

AcmMethod is initialized and never changed. The evaluation will always
have the same result. Remove resulting dead code.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/7d73a66184e13d5f8d4af7d21564032247a7e923.1669156825.git.philipp.g.hortmann@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>