staging: rtl8192e: Remove priv->rf_chip in _rtl92e_set_rf_power_state

staging: rtl8192e: Remove priv->rf_chip in _rtl92e_set_rf_power_state

priv->rf_chip is initialized to RF_8256 and never changed. Remove
conditions in function _rtl92e_set_rf_power_state as those are dead
code. Removed unnecessary blank lines to shorten code.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/a83b95c68697e6eade68bfd0bf8e22a1340c1457.1679732276.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>