staging: rtl8192e: Remove unused sens and max_sens from r8192_priv struct

The 'sens' and 'max_sens' fields in the 'r8192_priv' structure are no
longer used by the driver. This commit removes these fields.

Suggested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Signed-off-by: Yogesh Hegde <yogi.kernel@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/e117e958ada5695975deecfcd442703fd11bba3f.1682358035.git.yogi.kernel@gmail.com


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