staging: rtl8192e: Remove undefined function LedControlHandler

Remove function LedControlHandler as it is not defined. Remove resulting
unused local variables bLedBlinking, type, fc and LedAction.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/e3c29c3db33d314dffb673f8e563da0fb1f2b22f.1683960685.git.philipp.g.hortmann@gmail.com


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