staging: rtl8192e: Remove undefined function data_hard_resume

Remove function data_hard_resume as it is not defined.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/07048d775759fffe1d1c63d0416214da8311129a.1683960684.git.philipp.g.hortmann@gmail.com


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