staging: rtl8192e: Remove undefined function reset_port

Remove function reset_port as it is not defined.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/faa1fa979b214f709012a8bd65debbcc2bb59049.1683960684.git.philipp.g.hortmann@gmail.com


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