staging: r8188eu: remove bLedLinkBlinkInProgress

Remove the bLedLinkBlinkInProgress component from struct led_priv. Its
only use is to block requests for "link blinking" when this blinking
pattern is already active.

The "link blinking" pattern is a continuous blinking pattern (as opposed
to other patterns where we blink N times), it's no problem to restart this
pattern when it's already running.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/20221001170618.444444-1-martin@kaiser.cx


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